{t}, tap an untapped creature you control: Put a hit counter on Strike Core. Then it deals X damage to target player where X is the number of hit counters on Strike Core plus 2. Targetted player may tap an untapped creature they control. If they do, add a hit counter on Strike Core and they may choose a new target for this ability. Activate only during your combat phase before attackers are declared. Remove all hit counters from Strike Core at the end of combat.