

Effect
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.
The card activation of "Fire Formation - Tenken" can only be performed during Main Phase 1.
When activating the card "Fire Formation - Tenken", you must target 1 face-up Beast-Warrior-Type monster in your Monster Zone.
"When this card is activated: Target 1 Beast-Warrior-Type monster you control; while this card is face-up on the field, that monster's effects are negated, and it is unaffected by other card effects" is the effect processing that occurs when the card "Fire Formation - Tenken" is activated. (You cannot activate this card without performing this processing.)
The effect "While this card is face-up on the field, Beast-Warrior-Type monsters you control gain 300 ATK" is an effect that does not start a Chain.
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