Return to Ravnica: Sphere of Safety

Edition:	Return to Ravnica
Type:	Enchantment
Cast:
Rarity:	U
Collector #:	024
Creatures can't attack you or a planeswalker you control unless their controller pays for each of those creatures, where X is the number of enchantments you control.
Pro Tip! Sphere of Safety is a staple of enchantment-based Commander decks. Keep yourself safe in a "pillow fort" while you build up your resources for the late-game!