If you mill some non-legends its fine, as you can reanimate them later with big swings like Living Death or Patriarchs Bidding
Not only is it a 3/3 creature with Battalion that will give it and a couple of your other creatures indestructible when they attack, but you also get a counter option too
However, I've long been a supporter of buying Japanese Pokmon packs over English - mainly due to how easy they are to come by, and also because the best Pokmon cards are even better in Japanese, because they're just printed in higher quality
If a "Performapal" or "Odd-Eyes" monster you control attacks, your opponent cannot activate any Spell/Trap Cards until the end of the Damage Step
reason: its shadowspear, helps with hexproof and indestructible allowing aryel to blow up stuff some other good, yet cheap knight cards to include: Drogskol Cavalry , Bloodcrazed Paladin , Belle of the Brawl , Basri's Lieutenant , Kabira Vindicator , Knight of the White Orchid , Knights of the Black Rose , Lena, Selfless Champion , Liliana's Standard Bearer , Livio, Oathsworn Sentinel , Paladin of Atonement , Silverwing Squadron , Vona, Butcher of Magan , etc