Spirit Bonds
Spirit Bonds {1}{W}
Whenever a nontoken creature enters the battlefield under your control, you may pay {W}. If you do, put a 1/1 white Spirit creature token with flying onto the battlefield.
{1}{W}, Sacrifice a Spirit: Target non-Spirit creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
Latest set: [M15] Magic 2015 Core Set ( R · #37 )