Swift Strike

Deals its combat damage before units and heroes without swift strike.

Swift Strike Rulings

Combat damage is dealt simultaneously if the attacker and the thing it's attacking both have swift strike.Sirlin, 03/14/16
If swift strike damage kills a unit or hero in combat that does not have swift strike, the non-swift strike unit or hero dies before it gets a chance to deal combat damage.Sirlin, 03/14/16