Shadebinder

Delve
When Shadebinder enters the battlefield, place
two 1/1 Bleak Watcher artifact creature tokens
with defender onto the battlefield under your
control.
{x}{u/b},{t}; Pay {x} life, generate {x} Stasis Shard
artifact tokens that read, "Sacrifice this artifact:
Place a +0/+1 counter on target creature
until end of turn."