Dreamweaver

Dreamweaver transforms from Nightmare's Grip or enters the battlefield with 16 sleep counters on itself. (These counters may only be removed via the method(s) listed on this card.)
Anytime a player casts a spell with total mana cost of 2 or higher, remove one sleep counter.

At the beginning of each upkeep, if Dreamweaver has 5 or fewer sleep counters, each opponent loses 1 life.

When all sleep counters are removed from Dreamweaver, Transform Dreamweaver