Special Abilities

Special Abilities are abilities that can be used by Heroes, which usually cost mana. Some of them increase a hero's damage, some of them spawn a high health summon, and others can do other effects such as increasing the Hero Limit.
Special Abilities
Tower 	Special Ability 	Mana Cost 	Limit
Balloon Pal 	Summons a Bomb Float. 	20,000+ 	Unlimited.
Beetrice 	Summons a Caster Bee and increases the total bee limit. 	15,000 	2Please note that the Special Ability can be used again if Beetrice's extra bees summoned have died.
Bunny 	Passively increases Damage but also the Rate with more Bunnies in Range of each other. 	N/A 	9
Discount Dog	Increases the total limit and the limit for each hero (except for Spectre, Balloon Pal, Discount Dog and Summoners excluding Jester) by 1.	70,000+ 	Unlimited.
El Goblino 	Summons a Crucifix that will activate on the first enemy in its radius, stunning it for 10 seconds and damaging by 10% of its maximum HP. 	60,000+ 	Unlimited.
Lure 	Permanent enemy target count increase by 1 for each use. 	10,000+ 	Unlimited.
Quinn 	Temporarely applies the Slow effect to all enemies in its Range. 	15,000 	Unlimited.
Slime King 	Summons a Slime King with 7,000 HP. 	20,000+ 	Unlimited.
Spectre 	Temporary Rate decrease for towers in its Range. 	10,000 	Unlimited.
Wizard 	Permanent Damage increase by 10 for each use. 	2,000/3,000/4,000/5,000	4
Yasuke 	Temporary statistical boost, Stun immunity and Dragon Flame effect. 	3,000+ 	Unlimited.
==Trivia==
*Bunny's ability is the only one to not cost Mana, but is instead a passive Ability.