avatar card sleeves Ultimate Guard: Art Made with a smooth fabric surface for effortless card movement and a soft Avatar Card Sleeves - Etsy

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You have a very low land count, so statistically it might help you dig through stuff like lands that you can't cast (or Simian Spirit Guide or a counter that you want in hand can be drawn)

With its poisonous attacks and speed, it excels in strategies that gradually weaken opponents before delivering a decisive blow

It steals your opponents monsters, then any time to try to destroy the card it can simply get rid of the monsters it stole

If you pay this Jaces kicker cost you create a nonlegendary token copy, which is cool and very thematic for Jace, but still not very good