The flexibility for casting this card and the mana you generate when it taps is why I include it so high in this ranking
Universal Package (23 cards, roughly $12) Mana-fixing artifacts: Armillary Sphere, Darksteel Ingot, Fellwar Stone, Spectral Searchlight, Manalith, Mycosynth Wellspring Utility artifacts: Sun Droplet, Illuminated Folio, Urzas Blueprints, Crystal Ball, Temple Bell, Vensers Journal, Steel Hellkite, Culling Dais, Spine of Ish Sah Equipment: Bonehoard, Nim Deathmantle, Mask of Avacyn Lands: Evolving Wilds, Rupture Spire, Terramorphic Expanse, Shimmering Grotto, Exotic Orchard Commander is all about having fun, and you cant have fun if you cant play your cards, so you need mana fixing, mana acceleration, and card drawing to keep the gas coming
(Scryfall note) A planeswalker with hexproof may still be attacked
(2) Unaffected by your opponents activated card effects while you have a Ritual Spell in your GY
Garchomp ex is made even more explosive with Rare Candy, which allows it to snipe for 50 as early as turn 2
Mutate is an alternate casting cost that requires a target to cast, which means that a creature with shroud cant be a legal target