Rancor Slap a Rancor onto any creature to produce a sizable threat
While a triple blue casting cost can be restrictive in some decks, making any player draw as many cards as you are willing to pay mana for is great
Abstergo Entertainment Alistair, the Brigadier Arbaaz Mir Artificer's Assistant Aya of Alexandria Ballad of the Black Flag Banish to Another Universe Basim Ibn Ishaq Bayek of Siwa Board the Weatherlight Cabal Paladin Coal Hill School Crystal Skull, Isu Spyglass Curator's Ward D'Avenant Trapper Daring Archaeologist Desynchronization Diligent Excavator Displaced Dinosaurs Elena, Turk Recruit Excalibur, Sword of Eden Glin, Dwarf Emissary Guardians of Koilos Havi, the All-Father Jamie McCrimmon Jhoira's Familiar Jhoira, Weatherlight Captain Jo Grant Layla Hassan Lingering Phantom Lost to Legend Mishra's Self-Replicator Moira and Teshar Monumental Henge New Argive Peri Brown Raff Capashen, Ship's Mage Relic Runner Rona, Disciple of Gix Samwise Gamgee Sanctum Spirit Sarah Jane Smith Sentinel of the Pearl Trident Serra Disciple Surtr, Fiery Jtun Tegan Jovanka Teshar, Ancestor's Apostle The Capitoline Triad The Eighth Doctor The Fourth Doctor The Sixth Doctor Thran Temporal Gateway Traverse Eternity Traxos, Scourge of Kroog Traxos, Scourge of Kroog Urza's Tome Weatherlight What Must Be Done
Note that if everyone always played according to the current floor rules, Sindbad would not be on this list
Esper Sentinel pips both Archivist of Oghma and Deep Gnome Terramancer to a spot on this list, and its because the latter two cards both require opponents making deckbuilding decisions we cant control
In terms of gameplay, Tyme offers valuable resource recovery
