Ruinous Worm

When Ruinous Worm is played, the controlling
player targets Being cards on their field and exiles
them. For each Being card exiled, Ruinous
Worm's attack/defense values is increased by 1.
The controlling player can pay {b}{b} to target a
Being card on the opponent's field with lower
defense value than Ruinous Worm's and exile it. Ruinous Worm's attack/defense values are
increased by 1.