Bearruk, the Lonely Bear

Kicker {3}
If Bearruk was kicked, it enters the battlefield
with five +1/+1 counters.
Whenever Bearruk attacks or blocks alone,
double its power and toughness.
There's always something bigger, smarter, or hungrier
then you that's looking to chow down soon as you
turn your back. The secret? Don't.
- Bearruk, Lonely King