If youre trying to build your own proxy deck that feels closer to the real thing, this gives you concrete targets: gsm range, thickness, blue or black core, and a smooth, durable finish
All of these cards can provide absurd value in the right decks - getting more than one mana from a single land is always fantastic, and the ceiling on these is so, so high
Planeswalker Party is clearly more of a gimmick deck than a full-on cEDH viable one, but a few tweaks could make it a contender
Warrior's SwordWarrior's Sword It's too expensive for what amounts to such a minuscule effect
There are a few ways of doing it, but the main ones are: Sacrificing Yargle and Multani to Jarad, Golgari Lich Lord to make your opponents lose life equal to their power