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Tidus, Yuna's Guardian is the face Commander for Counter Blitz (green white blue)

Duplicates may be included

Delirium Unholy Heat deals 6 damage instead if there are four or more card types among cards in your graveyard

It can leave you fairly defenseless since Burn Decks arent typically focused on summoning strong monsters, but this can be prevented by having a fair amount of low level monsters to place in defense as fodder, or having cards which restrict battle on the field such as Mystic Mine

Monsters want to be discarded to activate their powerful effects

Descend 4 and descend 8 abilities care about there being at least four or eight permanent cards in your graveyard