Most legendary creatures are bad as Commanders, but hey, if you want to have Cho-Manno, Revolutionary as your leader, Im not stopping you
Unlike those cards however, its only been printed at base rarity in two sets (Scarlet & Violet Base Set and Obsidian Flames), so even the non-Reverse Holo versions are remarkably valuable
People are calling it a poor version of Greater Good and they're not wrong, since Good is way more mana-efficient, sacs the creature for you, and even helps fill your graveyard, but honestly do we want a card more powerful than Greater Good, one of the best draw engines in the format
It features unique, full-card artwork that is highly sought after by collectors
Best Can't Attack Payoffs Inevitable cards like mana sinks that deal direct damage, planeswalkers, and enchantments let you win the game if you don't have to worry about blocking
To find the right compression to make sure it doesn't break the game, you're virtually getting no benefit if you try to hardcode this solution, that's why custom textures is the clear choice