ugly mtg cards The Good, The Bad, And The Of Alchemy Your creatures are unaffected by summoning sickness. Orcish Spy · Fallen Empires

It became such an issue Golos was eventually banned from the format which caused some derision because at the time it was also the most popular commander according to EDHRec

Whenever you draw a card during an opponent's turn, create a 1/1 blue Tentacle creature token

Flicker also turned out to be a mechanic that ate up a lot of space in a cards textbox, and the design team for Commander 2017 saw card space as a resource in ever-shorter supply

Patrol Night One or two target creatures each get +1/+0 and gain first strike until end of turn

And "milling" has only ever worked because of how in-tune everyone in the pit is to Magic lingo, but it would not work for your average person who is picking up the game anew