All Stars Tower Defense 1 -

Instead of just standard Skill Orbs that buff one unit's stats, Synergy Artifacts activate when specific characters are in your active loadout. Example Combos:

If you have 3 or more "Dragon Ball" inspired units, all units gain a 15% Faster Energy Regen. All Stars Tower Defense 1

If you have 2 "Naruto" villains, enemies hit by their attacks take 5% increased damage from all sources. Instead of just standard Skill Orbs that buff