Hyakume

Flash
Defender, Haste
{1}{r/w},{t}: Roll a d20, then divide by the amount of creatures on the board, rounded down
Create that many eyeball Equipment Artifact tokens.
Attach one eyeball per creature to target creatures, discard the rest if you have excess.
Opposing target creatures and target creatures you control, when the eyeballs are equipped, gain -1/-1 counters and +1/+1 counters respectively.