Fortress Card

Fully Upgraded Fortress Card

Increase Tower Defense Absolute multiplier.

Use

Fortress Card adds multiplier to the Defense Absolute based on the Card Level.

Defense Absolute card is pretty useless outside of the specific builds and the very early game. Builds like Turtle can make use of it to last longer, but even with the Card's multiplier Defense Absolute stats falls of later in the game and limits your progression in comparison with other builds. Although it might allow you to farm longer with the basic build before transitioning to something else.

It also has limited usability in the late game (needs more info).

Fortress Upgrades

Fortress increase Defense Absolute multiplier as it gains additional star on the upgrade.

Fortress Card Star level upgrades

Star Level	Defense Absolute multiplier
1	x 1.30
2	x 1.45
3	x 1.60
4	x 1.75
5	x 1.90
6	x 2.05
7	x 2.20

Fortress Mastery

Reduces Wall rebuild time, and unlocks Fortress Mastery research.

Unlock Cost: 750 Stones.

Mastery Ability

Fortress Walls Reduces Wall Rebuild time 10s.

Mastery Research

Increases Card Mastery reduction to Wall Rebuild time.

Lab Card Research Unlocks after activating its mastery. Increases Fortress's Card Mastery reduction to Wall Rebuild time. Has 9 levels.

Level	Value	Time	Gems	Coins	Total Time	Total Gems	Total Coins
1	-20.00	20 days, 20h, 0m, 0s	2.53K	1.10q	20 days, 20h, 0m, 0s	2.53K	1.10q
2	-30.00	31 days, 6h, 0m, 0s	3.64K	1.30q	52 days, 2h, 0m, 0s	6.18K	2.40q
3	-40.00	41 days, 16h, 0m, 0s	4.42K	2.00q	93 days, 18h, 0m, 0s	10.59K	4.40q
4	-50.00	52 days, 2h, 0m, 0s	5.19K	3.40q	145 days, 20h, 0m, 0s	15.78K	7.80q
5	-60.00	62 days, 12h, 0m, 0s	5.96K	5.60q	208 days, 8h, 0m, 0s	21.74K	13.40q
6	-70.00	72 days, 22h, 0m, 0s	6.73K	7.70q	281 days, 6h, 0m, 0s	28.48K	21.10q
7	-80.00	83 days, 8h, 0m, 0s	7.51K	9.10q	364 days, 14h, 0m, 0s	35.98K	30.20q
8	-90.00	93 days, 18h, 0m, 0s	8.24K	9.80q	1 years, 93 days, 8h, 0m, 0s	44.22K	40.00q
9	-100.00	104 days, 4h, 0m, 0s	8.89K	10.00q	1 years, 197 days, 12h, 0m, 0s	53.11K	50.00q

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