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So, any deck can run it as a counter if it has the space.

Giga Impact Attack: Deals 230 damage

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Both players skip three turns apiece and then resume play with the Battle Phase of the seventh turn after activation

The only way to summon it properly (aside from its own self-revival effect) is with Rise of the Snake Deity, which can only be activated when (not if) the player's Vennominon the King of Poisonous Snakes is destroyed by a card effect

There are a few powerful artifact creatures with ETB effects like Filigree Angel or Myr Battlesphere, but the deck is clearly meant for a lifegain theme