Wild-Magic Sorcerer

Mana cost: {3}{R}
Type: Creature — Orc Shaman Sorcerer
Power / toughness: 4 / 3
Set: Magic Online Promos #92752 (rare)

The first spell you cast from exile each turn has cascade. (When you cast your first spell from exile, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Wild-Magic Sorcerer has 5 printings, first in Forgotten Realms Commander (2021). EDHREC ranks it #1,650 among Commander cards. It appears most in Prosper, Tome-Bound decks (10,282 on EDHREC). 2 public decks on TCG run it. It has 13 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: not legal
pioneer: not legal
standard: not legal
brawl: not legal

Public decks that run Wild-Magic Sorcerer

Exit from Exile - Commander Legends: Battle for Baldur's Gate, led by Faldorn, Dread Wolf Herald
Planar Portal - Forgotten Realms Commander, led by Prosper, Tome-Bound

Commanders that run Wild-Magic Sorcerer most

Deck counts from EDHREC.

Often played with Wild-Magic Sorcerer

Cards that show up in the same decks on EDHREC.

Rulings

2021-07-23: However, if you cast a spell from exile and then later that turn Wild-Magic Sorcerer comes under your control, Wild-Mage Sorcerer won't give cascade to any other spell you cast from exile that turn.
2021-07-23: The mana value of a split card is determined by the combined mana cost of its two halves. If cascade allows you to cast a split card, you may cast either half but not both halves.
2021-07-23: Cascade triggers when you cast the spell, meaning that it resolves before that spell. If you end up casting the exiled card, it will go on the stack above the spell with cascade.
2021-07-23: If you cast a card “without paying its mana cost,” you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, you must pay those to cast the card.
2021-07-23: The first spell you cast from exile each turn will have cascade, even if it's not the first spell you've cast that turn.
2021-07-23: If the card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
2021-07-23: If, while resolving the cascade ability from the first spell you cast from exile in a turn, you cascade into a second Wild-Magic Sorcerer, the spell will not cascade again.
2021-07-23: If a spell with cascade is countered, the cascade ability will still resolve normally.
2021-07-23: You exile the cards face up. All players will be able to see them.
2021-07-23: A spell's mana value is determined only by its mana cost. Ignore any alternative costs, additional costs, cost increases, or cost reductions. For example, Wild-Magic Sorcerer's mana value is always 4.
2021-07-23: Due to a recent rules change to cascade, not only do you stop exiling cards if you exile a nonland card with lesser mana value than the spell with cascade, but the resulting spell you cast must also have lesser mana value. Previously, in cases where a card's mana value differed from the resulting spell, such as with some modal double-faced cards or cards with an Adventure, you could cast a spell with a higher mana value than the exiled card.
2021-07-23: If you control more than one Wild-Magic Sorcerer, the first spell you cast from exile will have that many instances of cascade, each of which will trigger separately.
2021-07-23: When the cascade ability resolves, you must exile cards. The only optional part of the ability is whether or not you cast the last card exiled.