The entire table being able to cast things at instant speed means no one's turn is their own except yours, and crazy swings can happen any other turn as blockers come down at instant speed, threats gain pseudo-haste as they come down at the end of the last player's turn, and board wipes are suddenly allowed at any moment
Untimely Malfunction Modal spells are always awesome in Commander, and Untimely Malfunction is no different
Meld doesnt promise the latter, and doesnt in any way facilitate the former
While 'Partner With' decks lose some of the flexibility of regular Partner commander decks, they still provide two commanders
It's a ridiculously powerful ability that is active even when your commander is in the command zone
Each Jumpstart Booster contains: 20 Magic cards, including all the lands neededjust grab two Jumpstart Boosters, shuffle them together, and play