Predaplant Squid Drosera (MP17-EN133) [2017 Mega-Tins Mega Pack]

You can send this card from your hand to the Graveyard, then target 1 face-up monster you control; this turn, it can attack all monsters your opponent controls with a Predator Counter, once each. If this face-up card leaves the field: Place 1 Predator Counter on each Special Summoned monster your opponent controls, and if you do, any of those monsters that are Level 2 or higher become Level 1 as long as they have a Predator Counter.