You can NO LONGER luck out, you can only win the Divine by filling the bar (or win in the lottery, but... you know... 20 draws and only 1 Divine per draw SO...).
You have to open chests until you get to 1000. It's preposterous.

Wait I am confused. Is the mazes the next event or the Great Challenge?

Profile
Name: Manticore
Type/series: dragon divine horse
Number of lives: 4
Meter size: 1500 points
Item: TC (lvl 7)
Perk: gives you a Dragon's Flame item that you can put on a horse to give it a random dragon companion.
Average XP per day: 40
Drop rate: around once every 35-40 ageings


Fragments:
Total number of fragments found in the promo:
-625
-Out of the 625 fragments that can be found in the promo, 325 of the fragments are unavoidable. So if you finish the promo while trying not to get fragments, you will still end up with 325 fragments.

Number of fragments needed to fill the meter *IF* you collect ALL the fragments from the promo:
-325

Range of fragments per TC:
-(without 2× bonus) 9-19 fragments (I died mostly on level 4-5)
-(with 2× bonus) 18-38 fragments.

*The 2× bonus for this promo CANNOT be unlocked with a community objective. It can only be unlocked by progressing in the event.*

Also, no, there is no 3× bonus for this promo.


Cost:
(Without the 2× bonus)
Cost if you try to win the divine with a completely empty meter:
-10000 to 14 000 passes (50-70 TCs average) to 22 400 passes (112 TCs max.) if you get the min. 9 fragments per TC.

The overall price range:
-200 passes (1 TC min.) to 22 400 passes (112 TCs max.), depending on your luck.

(With the 2× bonus)
Cost if you get ALL 625 fragments from the promo:
-1 800 passes (9 TCs) if you get max. fragments per TC to 3 800 passes (19 TCs) if you win the min. 18 fragments per TC.

Cost to fill the meter from 0 fragments if you want another Manticore:
-11 200 passes (56 TCs max.) to fill the meter from 0, assuming that you win the min 18 fragments

Average price if you try to win the divine from the TC (for first time only):
-2 000 to 4 400 passes (10 - 22 TCs), assuming that you collected most of the fragments from the event

The overall price range:
-200 passes (1 TC min.) to 11 200 passes (56 TCs max.), depending on your luck.


Notes:
-Your divine's meter is set to 1125/1500 points when you initially get him.

-I managed to get a first drop from Manticore 10 ageings after I initially got him.

-The max. XP that I got from him in one day was 90 and the min. XP was 0.

-I used an *estimated average* to calculate the drop rate because ageing the divine took too long considering that I had to battle it several times daily. This means that I found how long it takes on average for the divine to get 750XP and then multiplied it by 2 to get an *estimated* average drop rate for the divine.

How your dragon's health bar works:
-Your dragon has 2 health bars: one for the lives that it regenerates and a SEPARATE SECOND BAR for the lives that you bought.

- Your dragon's regeneration health bar is the white bar on the top left of the event screen. Every time you attack a monster, you use up a certain amount of health points from your dragon's health bar. The heart next to your opponent's head with the ×1, ×2, etc written on it indicates the amount of health points that are used up PER ATTACK made on that specific monster. So if it says '×3' then your dragon uses 3 health points per attack made on the monster and so your dragon's health bar will decrease by 3 points every time you attack that specific monster. If you do not have sufficient lives with which to attack the monster, the game will prompt you to buy lives and you will not be able to attack until you regenerate or buy sufficient lives.

- When buying lives, the lives are NOT ADDED TO your WHITE HEALTH BAR. Instead, they get added to a SEPARATE health bar that is represented by the red heart to the left of your white health bar. So if you buy 4 lives, the number next to the red heart will increase by 4. When attacking, your dragon uses health points from it's white health bar first. After those points run out it will start using health points from the second health bar.


How your opponent's health bar works:

- Your opponent's health bar is yellow. It has a number written on each side of it. The number on the right indicates the total number of attacks are needed to defeat that monster and the number on the left indicates how many remaining attacks are needed to defeat the monster.
--Eg. If you attack a monster with a health bar (3-- health bar --3) once, then the number on the left will decrease to 2 because you need to make 2 more attacks to defeat the monster, but the number on the right will stay 3 because it's the total number of attacks needed and it's not going to change. So your opponent's health bar will look like this afterwards: (2-- health bar at decreased amount --3)

Number of lives needed during the promo:
*this number will vary from player to player based on the order in which you upgrade your dragon's stats, how often you stray from the path to get gifts and whether or not you use up your dragon's attacks before it's health bar gets full and stops generating new attacks (you waste potential attacks every time your dragon's health bar stops regenerating lives)*
-price of 4× lives = 90 passes (this cost may be halved during a lives sale or the number of lives will be twice as high during a lives sale. And the lives sale is most likely going to be over the last 1-2 weekends of the event.)
- 348 lives needed to rush through the promo (if you stray from the path often to get gifts but not fragments. It costs 7 830 passes)
-It costs about 630 passes (28 lives) to go through the promo again to win the leftover fragments.

Upgrades:
-The first upgrade that you should make is to shorten your dragon's regeneration rate. Unfortunately, it will be a bit costly and it will take a bit longer to collect the necessary elixir, but it will be worth it in the long run.

-The next upgrade should be either to your dragon's regeneration rate or your dragon's attack power. DO NOT UPGRADE YOUR DRAGON'S HEALTH BAR SIZE UNTIL YOU NEED TO UPGRADE IT. It may be a cheaper upgrade to make in the short run, but it will not benefit you much in the long run. This is because it is uses up the elixir that you need to upgrade your regeneration rate/attack power so what you are actually doing by upgrading your dragon's health bar is preventing your dragon from regenerating attacks faster and preventing your dragon's attacks from growing stronger. Do not do that. Its just a bad idea.

-When you should upgrade your dragon's health bar size: only upgrade it when you reach a point where your dragon is regenerating lives so quickly that your dragon's health bar becomes full overnight while you're sleeping. Or if you have elixir to spare. Why? Because every second that your dragon does not spend regenerating lives counts as a second that is wasted. So you end up 'losing' or wasting potential attacks if your dragon's health bar is full.

Misc.
-The final prize of the event is a companion that offer a +10 bonus for stamina.

-You get to choose which door you want to go through when there are multiple doors in a room. When you make this choice, consider both the benefits of the gifts that you will get and the amount of health that it will take to defeat a monster to choose which door is best for you.

-Make a decision as to whether or not you want the divine BEFORE you start the promo. This will help you choose which door is best to use later in-game because of the all the fragments that can be found in the promo.

-When going through a door that will give you an objective, do NOT expect a gift. Objective doors do not offer gifts, and you will still need to defeat the monster AND complete the objective/wait the required time before you can get through the door. Whereas for the prize rooms you just need to defeat the monster and you can move through. And you get a gift.

-You can collect multiple gifts in each room by defeating the monsters that are guarding the respective doors. But as soon as you choose to go through a door, you cannot turn back and collect more gifts from the previous room(s). And thus you lose the ability to collect the gifts until you finish and replay the promo.

-Each door leads to the same room, so there's no need to worry about choosing a 'correct' path through the event.

-The event offers pass seeds as a prize, but there are not enough seeds for a full meadow. A maximum of 14 seeds can be found in the event.

-You can replay the promo to collect the leftover gifts, but you cannot collect the final prize more than once and you cannot collect gifts that you have already collected. Each gift can only be collected ONCE unless it is offered multiple times during the event.

it's not the companion Chest but it's the Legendary Tack instead (if it is, I'm going to bet on Zaldia or Tormenta)

Wasn't the legendary tack in HOPs too? Can't have both them and Tianma in there (though it would be brilliant if they did!)

The Tack is my speculation, since it's the one offer apart from the Companion Chest which is not usually put in the Twitter pictures, we might be getting a simple weekend?