Each crystal is assigned a specific Magic mana color: The Earth Crystal - green The Fire Crystal - red The Water Crystal - blue The Wind Crystal - white While each crystal results in a -1 decrease to spell-casting cost, one has its own unique effects and costs associated with playing them, as can be seen in the cards above
Whether those elves are giving you Ezuri, Claw of Progress experience or theyre your team to attack with Jetmir, Nexus of Revels, an instant-speed token army is always awesome
BPhillipYork: Interesting, a generator that just turns into an 8/8 eventually with annihilator 2
[122] Artwork [edit] Each card has an illustration to represent the flavor of the card, often reflecting the setting of the expansion for which it was designed
Urtet, Remnant of Memnarch You could pick another 5-color commander with minimal synergies, like Kenrith, the Returned King or even Kyodai, Soul of Kamigawa, but Urtet, Remnant of Memnarch can synergize slightly, especially if you keep Brudiclad, Telchor Engineer and the myr subtheme in the Creative Energy precon (which I wouldnt!)