Tentacle Trap

If three or more creatures entered the battlefield this turn, you may pay {b}{g} instead of paying Tentacle Trap's mana cost.
Tap target creature. It doesn't untap during it's controller's next untap step. You may distribute up to three -1/-1 counters among any number of target creatures.
By the time Rami felt the tentacle tighten around her ankle, it was far too late.