Obsidian Clump enters the battlefield tapped unless you sacrifice a Bear.
: Add or to your mana pool.
Sacrifice Obsidian Clump: Add or to your mana pool.
: Target 1/1 creature gets +1/+0 until end of turn.
: Add 
or 
to your mana pool. or to your mana pool.: Target 1/1 creature gets +1/+0 until end of turn.
