Polymorph with Fireblast guarantees a single target removal for six mana. Often using the Hero Power to kill the produced Sheep is not necessary as you have minions that can finish it or it can be ignored completely. Polymorph is lower cost than Fireball but its effect is the same regardless of enemy minions health, and is so best used against the largest minions. Also it is the only Mage removal spell that bypasses Divine Shield, even though the Shield can usually be pinged with the Hero Power.
|Arcane Explosion||Free||Mage||Spell||General||2||Deal 1 damage to all enemy minions|
|Arcane Missiles||Free||Mage||Spell||General||1||Deal 3 damage randomly split among enemy characters.|
|Archmage Antonidas||Legendary||Mage||Minion||General||7||5||7||Whenever you cast a spell, put a 'Fireball' spell into your hand.|
|Sorcerer's Apprentice||Common||Mage||Minion||General||2||3||2||Your spells cost (1) less.|