That might change in the future if any printing buffs White further and making Prismatic Ending merge into more shells
With Edgar, you can simply leave the card in the Command zone until the time is right to attack with it and pump your squad
The developers really put a lot of effort into this product
Getting shoved by an enemy into a different space might be annoying, but not if theyre going to do it just before you get smacked with an iron pipe
they thin out the lands from your deck, making it less likely to draw one later in the game
The only potential problem is that you do have to tap out, so if there's a strange combination deck that can discard three cards, sacrifice a creature, and go off anyway, then you'd have to be careful