Emergent Woodwurm MOC/37

Set: March of the Machine Commander
Collector Code: MOC/37
Name: Emergent Woodwurm
Type: Creature — Wurm
Oracle text: Backup 3 (When this creature enters, put three +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.) Whenever this creature attacks, look at the top X cards of your library, where X is its power. You may put a permanent card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Rarity: Rare