Sword of the small and mighty

Equipped creature gets +2/+2 and has protection
from red and from green.
Whenever equipped creature deals combat damage
to a player, until your next turn that player cant
cast creature spells with converted mana cost 3 or greater, and add three mana of any one color
spend this mana only to cast creature spells with converted mana cost 5 or greater.
Equip {2}