1.1 - Stone-man tower and its upgrades receive 30% bonus attack range.
1.2 - Mage tower and its upgrade receive -20% bonus attack speed.

2.1 - Spear-man tower and its upgrade gets new ability. They perform double attack if they didn't shoot for 6 seconds
2.2 - Number of spikes in Spike spell increases from 9 to 16

3.1 - Woman/Fish tower shoots 2 projectiles (it stuns) at once.
3.2 - Stone spell receive 2 extra stacks. If you don't use this spell for a while, you can cast 3 times in a row later
3.3 - Stone-man tower Level 3 and Level 4 get 33% chance to stun enemies for 4 seconds

4.1 - Gives Fear spell. It forces enemies in the area move back for 6 seconds
4.2 - Gives Rage Totem spell. It puts a totem on the chosen spot which increases attack
speed of nearby towers by 66%

5.1 - All towers receive 15% bonus damage
5.2 - Towers can get ranks. If a tower kills 5 enemies it gets Rank 1 and 5% bonus damage. Rank 2/3/4/5 gives 10%/15%/20%/25% bonus damage and requires 10/15/25/50 kills.

6.1 - Spear-man tower Level 3 and Level 4 gets 20% chance to make 300% damage
6.2 - Voodoo mage towers increase permanently their damage by 3 each time they kill an enemy. This ability has 175 maximum bonus

They are not in the game yet, but come soon.

Sniper

• Fire Spear. Shoot a fire spear which burn an enemy for a long time for high damage
  
• Air slayer. Attacks deal 50% damage to air units

Axeman

• Handy man. Axeman has a chance to shoot 2 axes at the same time
  
• Sunder axes. Each new attack at the same target deals more damage

Vodoo Mage

• Polymorph. Transform an enemy into slow harmless creature which has no armor resistances
  
• Curse. Curses a group of enemies so they take more damage from all sources

Stoneman Level 3

• Strong throw. Perform an attack which deals an extra damage and stuns all enemies
  
• Bounce stone. A stone has a chance to bounce for an extra damage

Woman & Fish

• MotherFish. Produces living roe which moves towards an enemy, stun them and deal damage
  
• Oil. Create a pool of oil which reduces enemy movement speed.

New skills come with new missions.
Feel free to ask any questions about game mechanics.