I recorded a video and tried to calculate a percentage of mana gained after hits and at the end of the turn as a number of pixels representing the mana gauge.
I ran into some interesting observations that don’t really fit well into previous assumptions. You can do that too, by recording a battle and then analyze it frame-by-frame, measuring pixels.
Here’s my observations so far:
Enemy line consists of Evelyn, Boldtusk, Richard, Khiona and Musashi. All except Musashi has critical troop, Musashi has +9% mana troop.
During first round, Eve, Boldtusk and Musashi were not hit at all, and regenerated following amounts of mana:
Eve : 12 pixels out of 84 ~ 14.2%
Boldtusk: 11 pixels out of 84 ~ 13.1%
Musashi: 13 out of 84 ~ 15.5%
Khiona was hit with 1 strong tile (yellow) and immediately got 10% of mana, then hit with 3 green tiles combo and got 15% more mana (giving 25% of mana before end of turn bonus). After end of turn she got 31.0% of mana (+6%).
Richard was a tank, and got hit with 2 yellow tiles (giving him 16.6% of mana) and then I was unable to see his mana because of the combo text (but he was hit with 6 more tiles). Before end of turn bonus he had 42.8% of mana and after end of turn bonus he had 46.4% of mana (+3.6%).
On next turn, Richard was hit with 3 blue tiles and had 67.9% of mana (+21.5%) before end of turn bonus.
Noone else was hit at that turn, and at the end of turn following happened:
Eve got ~ +10%
Boldtusk got ~ +8.3%
Khiona got ~ +9.5%
Musashi got ~ +13.1%
Richard got ~ +8.3%
On next turn, Richard was again hit by 3 blue tiles and got +19%. Noone else got hit, and at the end of turn following happened:
Eve got ~ +10% (+11% on average for 3 turns)
Boldtusk got ~ +7.1% (+9.5% on average for 3 turns)
Khiona got ~ +7.1%
Musashi got ~ +8.3% (+12.3% on average for 3 turns)
Richard got at least +6% and was fully charged.
Later, Richard got hit with 3 green tiles and acquired +18% of mana for that.
My current observation is following:
- Either mana gauge is not linear, or enemy heroes receive increased mana bonus on the first round (at least for the first hit)
- Mana toops work as advertised on the defence
- Strong/weak tiles has no bonus/penalty for enemy mana gain
- Tile hit has diminishing effect during the same round. First tile gives most mana, tiles after that give less and less
My speculation is:
Bonus at the end of the round equals to one tile hit. If the hero was already hit with tiles on that round, bonus at the end will give less than if hero was not hit at all.
Multiplier for next hit is around 0.7-0.8 (I guess it’s 0.75). It looks like each combo increases the mana gain, so 2 sequential combo with 3 tiles will give more mana than 1 combo with 6 tiles.
So my guess is that if the hero was hit with 3 tiles and then with 3 more tiles on the same turn, mana gain would be (x + x * 0.75 + x * 0.75^2) + 133% * (x * 0.75^3 + x * 0.75^4 + x * 0.75^5), and at the end of the turn, the hero will gain 133% * x * 0.75^6, where x is the mana gain of the first tile.