Not only is it basically a free include as a mana rock, but it has really helped to close the gap between aggro in Commander, and aggro in other formats
Harsh Mentor, Manabarbs, and Spellshock will burn players whenever they activate abilities, tap lands for mana, or even cast spells
The side-loading pocket design keeps cards securely in place, preventing them from slipping out during transport or page flipping
This effect is just two mana, and shuts down everyone's battlefield to allow Ygra to attack freely (assuming no one can flash in a creature)
Theres mana rocks to accelerate our early game, some efficient token generators to further boost our creature count, and then a few combat-step force multipliers like Brudiclad, Telchor Engineer and Lightning Runner to push our damage potential into lethal range
Above you can see a possible list of rejected names before Ultra Prism was decided upon, although it does look heavily staged for the shot