Burdens of the Past

Deal 3 arcane damage to target opposing hero. If Sonic Boom deals damage, look at the top card of your deck. If it's a Wizard 'non-attack' action card, you may banish it. If you do, you may play it this turn as though it were an instant and it costs X resource points less to play, where X is the damage dealt by Sonic Boom.

Legendary (You may only have 1 Will of Arcana in your deck.) When this is pitched, amp 1. (The next time you would deal arcane damage this turn, instead deal that much plus 1.)