
Nick Valentine can't be blocked except by artifact creatures.
Whenever Nick Valentine or another artifact creature you control dies, you may investigate. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
Build a mono-blue artifact deck that floods the board with cheap artifact creatures, swing with an effectively evasive Nick Valentine, and turn every dying robot into Clue tokens for relentless card advantage. You spend the early game ramping with mana rocks and deploying artifact creatures, then sacrifice and recur them to bury opponents in cards before closing with a big swing or an artifact-based combo.
Add fast mana rocks (Sol Ring, Mana Vault, Mana Crypt) and free sac outlets to accelerate the investigate engine, then lean into a tight combo finish such as an infinite-token loop with Ashnod's Altar. Cut slow, fair Clue makers for tutors like Tezzeret the Seeker and Whir of Invention, and protect the engine with counters and Padeem-style hexproof. Improve the mana base with utility lands and consistency to make Nick's beatdown plan a real backup.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite LTB, Infinite ETB, Infinite sacrifice triggers
→ Infinite death triggers, Infinite ETB, Infinite LTB
→ Infinite LTB, Infinite ETB, Infinite sacrifice triggers
→ Infinite LTB, Infinite ETB, Infinite sacrifice triggers
→ Infinite LTB, Infinite ETB, Infinite sacrifice triggers
Combos via Commander Spellbook.
Same color identity (U), by popularity.