You get your Living Death on a stick
I did not use the Goodra at all during the Portland event, but the Goomy did slow down many Turbo decks like GardEon during the early turns
Mirri, Weatherlight Duelist Mirri, Weatherlight Duelist is a marvelous way to limit your opponents blocking and attacking capabilities, mostly seeing play in Commander
Each offers a potent combination of board presence, card advantage, and tactical flexibility wrapped in an excellent package
The designers should consider holding back from introducing new counter types to future sets, and instead opt for a handful of types that regularly reappear
Unknown Shores is the worst, since it slows you down every time you need its mana, rather than on one turn