Klee, Planetary Threat

Prowess, Boom-Boom-Bakudan - (Klee cannot
attack or block. Instead, before damage is assigned
during each players combat phase, you may have Klee
deal damage equal to its power to any target.)

Whenever the first ability, instant or sorcery spell
you cast or activate each turn deals damage to a creature, deal 3 times that much damage instead.