Crown of Anti-Endra

Endra counters: Sodi's Spellshaper, Teacher of Humility, Albon Roa, of the Order, Cobalt Waystone, Lumen Reclaimer and Equivocate. (Sandstorm Titan to a lesser extent because it prevents Haunting scream dealing damage with the unit)

Thundering Kerasaur draws a bunch of cards against Endra decks.

two Endras can be transformed with one Sodi's Spellshaper if a Tome of Repetition is in play.