Skill Combination Effects

Some heroes' skills can be combined to create an additional effect. (These were all I could remember, I would appreciate assistance with the rest. -siege)

Elven Brigade

Flame of the Devout + Dash

• Dashing through the flame leaves a burning trail behind that deals damage to enemies that come into contact with it

Tempest + Ebb and Flow

• Casting Tempest while under the effects of Flow will make the waves come out faster

Maelstrom + Incinerate

• Incinerating the tornadoes created by Maelstrom will light them aflame, adding unit damage to the existing building damage effect

Tactician Banner

Soul Binder

• Flaming Orbs - causes the banner to gain an attack

Divine Wizard

• Lightning Focus - deals damage to nearby enemies

Rune Knight

• Dismantling Aura - reduces armor of nearby enemies

Aeromancess

• Concentration Aura - increases mana regeneration of allied units

Arcane Archer

• Trueshot Aura - increases ranged damage of allied units

Blazing Priest

• Burning Banner - deals damage to close enemies

Infiltrator

• Trapped Banner - acts like a detonating explosive when destroyed

Time Cleric

• Endurance Aura - increases the speed of allied units

Mystic Swashbuckler

• Mocking Aura - decreases attack damage of enemies

United Creeps

Nightmare + Spire

• Units hit by spire under the effects of nightmare will be frozen for a short amount of time and damaged (broken in 1.12)

Encouragement + Rebirth

• When a unit enchanted by rebirth is sacrificed by encouragement a flying unit is spawned from its corpse

Nightmare + Howl

• Waking units from a nightmare with howl deals damage and instantly wakes them

Grim Brigade

Mortal Strike + Thunderstrike

• Hitting Rue with Thunderstrike charges his blade, allowing Mortal Strike to deal more damage

Royal Guard + Remorseless

• Sacrificing the Royal Guard will result in giving magic immunity instead of the critical strike buff