Fire Formation - Tenken (CBLZ-EN072) - Cosmo Blazer 1st Edition

Activate only during Main Phase 1. When this card is activated: Target 1 Beast-Warrior-Type monster you control; during this phase, its effects are negated, also it is unaffected by the effects of cards other than this card. (This applies even if this card leaves the field.) All Beast-Warrior-Type monsters you control gain 300 ATK.