Kresh the Bloodbraided Five mana for the 3/3 Kresh the Bloodbraided seems like a bad deal, until you consider its inverse-Hamletback Goliath effect
You can attack using Dolmen Gate to protect your creature, you can try to cast your spells while attacking, or double a combat trick
Many such cards like Entomb and Chrome Mox got their ticket to Arena through a Limited event, or Arena Anthology, or show up very infrequently like a Special Guest that earn a pre-ban so as to not shake up any pre-existing legality
Mana Ramp Since my commander costs five mana, I like the card advantage ramp spells of Cultivate and Kodamas Reach, which also fix my colors along the way
Consider Suggested Cut: Cursed Mirror Cursed Mirror is busted, so plop it in another deck
On top of that, Simba can Pounce on Evasive characters and fend off incoming challenges with six willpower