Circle of Flame
Enchantment
Whenever a creature without flying attacks you or a planeswalker you control, Circle of Flame deals 1 damage to that creature.
"Which do you think is a better deterrent: a moat of water or one of fire?" —Chandra Nalaar
Illustrated by
Magic 2015#135UncommonEnglishLegality
Rulings
Jul 18, 2014
Circle of Flame’s ability triggers only if a creature without flying is declared as an attacker during the declare attackers step. If a creature with flying attacks you or a planeswalker you control and then loses flying, or if a creature without flying is put onto the battlefield attacking you or a planeswalker you control, the ability won’t trigger.