mtg commander deck 2018 Magic: The Gathering Includes deck box Commander 2018 - Set of

The Support keyword allows characters to lend their strength to a different character for the turn

While Karn isn't breaking anything and shouldn't be banned, if we ever get to the point where Karn, the Great Creator finds itself on the banned list (which is unlikely but not impossible), then Mycosynth Lattice would be 100% safe to unban

That makes these starter decks and what they provide quite unique

The World Tree's third ability doesn't cause lands you control to lose any of their abilities

This is a state-based action and doesn't use the stack

But if you Cascade into this card, you can just draw 2 and discard 2