Rule 418.1
Spells, Units, Abilities, and other game effects may Deal Damage to units.
- 418.1.a Assigning Damage during the Combat Damage Step is not Dealing Damage, but will cause Damage to be Dealt when…
- 418.1.b To Deal Damage to Units, mark the specified amount of Damage on the Unit.
- 418.1.c Damage is marked on each unit separately.
- 418.1.d Damage can be Dealt to more than one Unit at the same time.
- 418.1.e Valid Damage is a positive integer amount, greater than or equal to 1 Damage.