100 card sleeves mtg Katomula with 100 Inner Sleeves, Textured Back Art, Fit Standard Size Cards Glossy Front Acid 100 Count Matte Card Sleeves

Check out other decks of a similar power level with relatively good Rare and above cards - MTG Arena Starter Decks

I'd rather have in my hand Baleful Mastery so I can exile a planeswalker or drop the cost to two

Jalira, by contrast, is slow, gives you access to just one color, demands you play an off-color strategy (Blue aristocrats?), is rather squishy in in combat, and is very slow: you need to summon your 4-mana commander, then wait another turn to activate her 3-mana ability

Tomb of Horrors Adventurer does a lot for you

Memnarch is a seven mana 4/5 that is average in a fight, but an absolute horror of fighting against if youre not careful