Academy Rector Combos
Academy Rector + Neoform + Sidisi, Undead Vizier
Kaervek's Spite + Academy Rector + Barren Glory
Pattern of Rebirth + Academy Rector + Splinter Twin
Combo result
Mill your opponents' libraries. Infinite ETB. Infinite death triggers. Infinite creatures tokens with haste.
Prerequisites
Twin and Exarch in your library. Access to graveyard, library search, creature and artifact abilities. Haste enabler to tap Deceiver Exarch the turn it enters play.