
Banding (Just ask around until you find someone who knows.)
Creature spells you cast with banding cost {2} less to cast.
Whenever two or more creatures you control attack in a band, each creature in that band gets +1/+1 until end of turn for each creature in that band.
Chatzuk, Mighty Guitarist has 1 printing, first in Mystery Booster 2 (2024). It has 9 official rulings.