SAW God Slayer

SAW God Slayer power and toughness are equal to x multiply by 3
Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.)
first strike, vigilance, lifelink
when SAW God Slayer enters the battlefield
choose one
• deal X damage to Target
• destroy 4 permanence
if you choose this ability ignore indestructible