Reserves: Choose one of your opponent's units in the Ground arena and roll 4 dice. For each 2, 3, 4, 5, or 6 you roll, this unit does 1 damage to that unit. Move this unit to the Ground arena tapped. Play only when the Ground battle step starts.
Keywords
Reserves
Reserves: [Ability]: A layered, static ability that means, "The following ability works while, and only while, it's in the build zone." The granted ability remains to be the ability of its type. (For example, activated abilities granted by Reserves may be disrupted.)