Whenever you cast a spell from anywhere other than your hand, draw a card.
Vega turns every spell you cast from somewhere other than your hand into a free card, so you build a deck full of foretell, flashback, adventure, cascade, and other alternate-zone casting to chain value while staying ahead on cards. You grind through midgame card advantage, then convert that engine into a big payoff or combo finish in UW colors.
Cheap 3-mana flyer that generates raw card advantage from turn one onward
Color identity (UW) gives access to the best counterspells, board wipes, and protection
Synergizes with a wide range of mechanics (foretell, adventure, flashback, cascade, blink-recast)
Self-replacing engine that keeps your hand stocked through attrition
Card draw stops the moment Vega leaves the battlefield, so removal hurts
UW lacks ramp and big mana, so explosive starts are rare
No inherent way to win—needs dedicated finishers
Vulnerable to graveyard hate if leaning on flashback/escape
Can be a slow durdle deck without a focused payoff
Casting the second copy from your library triggers Vega and wins the game outright.
Add more efficient cantrips and free-cast enablers (Snapcaster Mage, foretell suite, cascade pieces) to maximize triggers, and lean into a tight win package like Approach or Aetherflux so the card advantage actually closes games. Improve the mana with fast lands and UW staples (Mystic Sanctuary, fetch-able duals), and protect Vega with cheap counters and instant-speed protection so the engine never goes offline.