He still needed a five-color effect to let players play all their Towns in Commander, so we were missing a short ability that contained Designing cards to work well in both Standard and Commander is a common challenge, and this is a common solution: designing the core functionality around what works in two-player formats, then adding a splashy expensive ability that sells a big dream and cements the build-around
As a result, enchantments, artifacts, and other card types beyond creatures that come with enter the battlefield effects, can be taken advantage of using Yorion
Plus, playing Mardu Vampires with this Olivia will draw far less ire and anger from the table as opposed to Edgar Markov
Ryusei, the Falling Star [Dragon]: Same as Comet Storm
Every color is going big in Limited, and I mean REALLY big