Core Blast

You can only activate this card's effect while you control a face-up "Koa'ki Meiru" monster. Once per turn, during your Standby Phase, if your opponent controls more monsters than you do, you can destroy a number of cards your opponent controls so that your opponent will control the same number of cards as you control monsters.

Type

Continuous Trap

Monster type

Continuous

Archetype

Koa'ki Meiru

Ban list (TCG)

Unlimited