Senescent King Gatro

{t}: Add one mana of any type to your mana pool.
Obedience: King Gatro gains +0/1 for each
Dog type creature on the battlefield.
{t}, {8}: Tap all Dog type creatures that you control. Each of them attacks an enemy
player's life directly. After this is done, send King Gatro to the graveyard.

Hail the King. Hail his mighty kingdom.