all cards with partner mtg Partners and Friends Forever Guide Commander 2016 Mechanics | MAGIC:

The main win condition (other than Thoracle) is Doomsday

Summoning sickness prevents a creature from attacking or activating abilities that require tapping

Theyre one of the hallmark effects that make Magic engaging, pitting you and your opponent against each other in a mind war of threats and bluffing to prove whose wile and wit is superior

That said, there are powerful equipment like Skullclamp and the Swords, and Anchor to Reality puts them straight into play, so there's utility here

While the planeswalkers ability is the built-in way to pull it off, Garruk doesnt care how he gets to 2 or 1 loyalty

This batch has even more cards that are useful outside of EDH