In removal-heavy matchups, it can be better to try to wait and play Tergrid, God of Fright when we have enough mana to follow it up immediately with a discard spell so we get at least some value out of it, even if it gets killed
The alternative commander for this deck is Magus Lucea Kane , one of the first-ever named Genestealer Cultists within 40,000 lore
P/T Number 392 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (2/18/2022) An Aura controlled by an opponent does not cause a creature you control to be modified
Playable for only the cost of two ink, and capable of questing for three lore, Simba is going to be a huge book for Ruby aggro decks
[6] Counters are permanent
She causes every critter your opponent casts and every nonbasic land they play to enter tapped, totally nullifying haste as a keyword and slowing their mana production considerably (unless your opponents prefer to play with the Thriving lands)