Having every card be the same colour makes them difficult to parse across the table, especially for people with visual impairments or sensory processing difficulties (as noted by Magic Proxy artist Meghan "Sheepwave" Burden)
Able to cheat out a tutored card that costs four or less mana, which does include Sheoldred, the Apocalypse, Beseech the Mirror was the top chase card for the WOE main set
Many tournament organizers source Japanese OP-11 through TCG-AKIBA for official and casual event prize support
A 7/4 with Cascade, Cascade is already a terrifying threat on its own, and things only get more absurd from there
At the kitchen table, way too many players aren't doing anything on turn one anyway
2015: Jace, Vryns Prodigy While older formats dealt with the fallout of Delve, Standard players scrounged up the cash for a different Blue staple: Jace, Vryns Prodigy