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
For example, if you control ten permanents, lose control of one, then planeswalk to The Golden City of Orazca, you won't have the city's blessing
What decks do you regularly play against
(Though Ozai, the Phoenix King does this even better, allowing you to keep the excess mana.) Miirym, Sentinel Wyrm is solid, but only in green-blue-red dragon decks and nowhere else, so that's a tad limiting
Rigid Top Loaders: For your heavy hitters and favorite holos, a top loader prevents bending
That's to say nothing of the card potentially innovating new landfall archetypes, too