Blightmarsh Berserker

Consume 4 (If this creature deals lethal combat damage to a creature with power 4 or less, put a +1/+1 counter on this card.)
"Blightmarsh trolls are an odd sort. The regenerative properties of their flesh only seem to trigger once they've had a meal. Perhaps a curse from Zetis? I should learn more of this matter." - Saracine's Journal, page 14