Dralnu's Pet [PLS] 23

Creature — Shapeshifter

Kicker—(2)(B), Discard a creature card. (You may pay (2)(B) and discard a creature card in addition to any other costs as you cast this spell.)
If Dralnu's Pet was kicked, it enters the battlefield with flying and with X +1/+1 counters on it, where X is the discarded card's converted mana cost.