During either player's turn, when a card or effect that would inflict damage to you is activated: You can discard this card; negate the activation, and if you do, destroy it. During either player's Battle Phase: You can discard this card; the next battle damage you would take this turn becomes 0. You can banish this card from your Graveyard; add 1 'Entermage' monster from your Deck to your hand, except 'Entermage Damage Juggler'. You can only use this effect of 'Entermage Damage Juggler' once per turn.