Arenson's Aura (Shawn "Hammer" Regnier) (SB) [Pro Tour Collector Set] XY78 if your Attack Position monster

if your Attack Position monster battles an opponent's Attack Position monster with higher ATK: The controller of the battling monster with lower ATK can pay 500 LP for that monster to gain 500 ATK during damage calculation only

Set: Ugin's Fate Type: Instant Rarity: Uncommon Cost: {1}{U} Exile target creature

Set: Shards of Alara Type: Creature — Human Knight Rarity: Rare Cost: {4}{W} When Knight-Captain of Eos enters the battlefield

The Isle of Wak-Wak

Arenson's Aura (Shawn "Hammer" Regnier) (SB) [Pro Tour Collector Set] XY78 if your Attack Position monsterSet: Pro Tour Collector Set Type: Enchantment Rarity: Common Cost: {2}{W} {W}, Sacrifice an enchantment: Destroy target enchantment. {3}{U}{U}: Counter target enchantment spell. "I have my faith, and I have my prayers. But if push comes to shove, I've also got a little something extra." Halvor Arenson, Kjeldoran Priest