Parasitic Skulker

Fear, First Strike, Chestburst(When you play this
spell, you can remove all Egg Counters from one target
creature; each counter removed reduces this card's
cost by {1}, and deal damage to the creature equal to
the number of counters removed.)
You can reveal Parasitic Skulker in your hand:
Discard a card and pay {1}{b}{b}; Create a 2/1
Insect creature token with "{t}: Sacrifice this
creature and put 2 Egg Counters on target
creature."