Sentinel Killers (featuring Curiox)

The idea is to play fat Sentinels as early as possible and get value by giving them Killer, then potentially recur them with Talir's Intervention or Excavate.

It's not super consistent, but allows for some explosive turns. Occasionally, you get to do cool things like giving Heart of the Vault Deadly (with The Praxis Arcanum), then put it back in your hand and replay it to kill an enemy unit (and draw an extra card). Waystone Titan into Heart of the Vault also feels really good.

Note that Curiox, Insatiable Seeker is an Explorer, which matters both for Talir's Intervention (another Dragon's Eye!) and Mysterium Orb (i.e. having a Curiox makes the next one cheaper).