Rules text
Card Text
[Reaction] (Play any time, even before spells and abilities resolve.) Choose a friendly unit at a battlefield. Counter an enemy spell or ability that chooses it and no other friendly unit.

Riftbound card
106/219 - Unleashed - Uncommon - Spell
Rules text
[Reaction] (Play any time, even before spells and abilities resolve.) Choose a friendly unit at a battlefield. Counter an enemy spell or ability that chooses it and no other friendly unit.