Tatzelwurm

Haste, First Strike
For each artifact your opponent controls called
Catnip Tatzelwurm Gets -1/-1.
For each artifact you control called catnip
Tatzelwurm gets +1/+1.
If catnip is equipped to Tatzelwurm it instead
gets +2/+2.
When Tatzelwurm enters the battlefield search
your library and/or graveyard for a card called
catnip, reveal it, and put it into your hand.