'MagicCon' cards

Whenever you planeswalk here and at the beginning of your upkeep, exile the top card of your library. You may play that card this turn. Whenever Chaos ensues, exile the top six cards of your library. An opponent or player outside the game chooses a nonland card with their favorite art. Then you may cast that spell without paying its mana cost.

When you planeswalk here and at the beginning of your upkeep, create a Black Lotus artifact token. Whenever Chaos ensues, each player draws a card for each artifact token they control.

When you planeswalk here, each player who controls their commander draws a card. Other players may put their commander from the command zone onto the battlefield. If an ability of your commander would trigger during your turn, that ability triggers an additional time. Whenever chaos ensues, the number of times each commander has been cast from the command zone becomes 0. (This resets commander tax.)

Draft-When you planeswalk here, each player opens a booster pack, drafts a card, and exiles it face down. Each player may play the card they drafted for as long as it remains exiled. Players may spend any type of mana to cast spells this way. Standard-Whenever chaos ensues, each player draws cards equal to the number of differently named Standard-legal cards they control. (Basic lands count. Tokens don't.)