Mystic Speculation with buyback by paying ({2} magic symbol) ({U} magic symbol) .
Sorcerer Class triggers, causing
Mystic Speculation to deal damage to each opponent equal to the number of instants and sorceries you've cast this turn.
Resolve
Mystic Speculation, causing you to draw three cards due to
Eligeth and return
Mystic Speculation to your hand.
The Locust God triggers three times, creating three 1/1 Insect creature tokens with flying and haste.
Activate the three Insects by tapping them, adding ({2} magic symbol) ({U} magic symbol) that can only be spent to cast an instant or sorcery spell or to gain a Class level.
Repeat.
Results
Infinite card draw.
Infinite draw triggers.
Near-infinite damage.
Near-infinite ETB.
Near-infinite magecraft triggers.
Near-infinite storm count.
Near-infinite tapped creature tokens.
Metadata
In 3 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).