Do X, up to 4, damage to one of your units Prevent X+1 damage to one of your other units in the same arena.
Enhance: Pay 4 Force Also, untap one of those units.
Keywords
Enhance
Enhance: [Effect]: A selective, static effect that means, "You may play the following effect by paying the additional cost." The effect states whether you play it "instead" or "also". You must declare it to get its effect.