It also makes 'black and red spell considered colorless damage', which is a rather specific way to prevent them from being countered by counterspells that cares about a specific colour
Artazon enables you to, between turns, yours and the opponents, look for a basic Pokmon which doesn't have Rule Box , reveal it, and place it on your bench
First-Sphere Gargantua Unearthing out of the yard at Phyrexian Rager rate is probably not quite good enough, but you could do worse than First-Sphere Gargantua if you're looking to self-mill anyway
In a five-color deck, getting any color of mana right away is vital
I discovered Merieke Ri Berit, my favorite commander so far, by playing Tiny Leaders and later turning her into an EDH deck