Your Pal, Gog-Agog

+2: Put a worm counter on target creature you control. If that creature would die, regenerate it and remove the worm counter
-2: Target Opponent sacrifices a creature. If they can't, they discard a card at random
-5: Sacrifice all creatures with worm counters on them. For each, create a token that's a copy of Your Pal, Gog-Agog except it's not Legendary