Volcanic Strength
Enchantment — Aura
Enchant creature
Enchanted creature gets +2/+2 and has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)
Printings & Conditions (2)
Magic 2011 (M11)(Magic 2011 Core Set)#158Common
Magic 2013 (M13)(Magic 2013 Core Set)#155Common