I think the docent of perfection is going a little far on the creature base. Maybe replace it with more counterspells, hand disruption, or card advantage. If you want to keep the docent maybe just go down 1 docent and add another cheap counter like spell snare. If you just want to counter their spells and don't care if they get them back the remand is great. 2 mana counter a spell draw a card, but the spell goes back to their hand. Other than that the deck looks great and fun to play.
The deck look much closer to tempo that control. Tempo plays a threat then protects it with control spells, control nope stuff and out value your oponent till they are running on empty then slam a big flash game ender or a planswalker they can slowly alt for leathal.
If your looking for a effective esper control list then hears mine
(Placed 4 time in top 3s and 20+ people fnms with deathshadow, jund, burn, Tron and coco decks and jank meta.)
Creatures (14):
3x Delver of Secrets
3x Docent of Perfection
4x Monastery Mentor
4x Snapcaster Mage
Instants (14):
1x Cancel
1x Cryptic Command
3x Force of Negation
2x Mana Leak
2x Pact of Negation
4x Path to Exile
1x Spell Snare
Sorceries (8):
4x Serum Visions
4x Unesarth
Lands (24):
1x Flooded Strand
2x Godless Shrine
4x Hallowed Fountain
1x Isolated Chapel
1x Marsh Flats
2x Mystic Sanctuary
1x Polluted Delta
3x Snow-Covered Island
3x Snow-Covered Plains
2x Snow-Covered Swamp
4x Watery Grave
Sideboard (15):
Instant (12):
2x Cancel
1x Cryptic Command
4x Disdainful Stroke
1x Mana Leak
2x Spell Pierce
2x Spell Snare
Sorceries (3):
2x Inquisition of Kozilek
1x Thoughtseize
Feedback is Appreciated
If your looking for a effective esper control list then hears mine
(Placed 4 time in top 3s and 20+ people fnms with deathshadow, jund, burn, Tron and coco decks and jank meta.)
1x Cast Down
2x Esper Charm
3x Fact or Fiction
2x Fatal Push
1x Go for the Throat
3x Kaya's Guile
3x Mana Leak
2x Silumgar's Command
Creature (6)
2x Angel of Grace
2x Tasigur, the Golden Fang
2x Torrential Gearhulk
2x Boreal Shelf
2x Creeping Tar Pit
4x Evolving Wilds
2x Field of Ruin
4x Snow-Covered Island
5x Snow-Covered Plains
5x Snow-Covered Swamp
Enchantment (6)
2x Marit Lage's Slumber
3x On Thin Ice
1x Search for Azcanta
Sorcery (3)
3x Dead of Winter
4x Arcum's Astrolabe
2x Damping Sphere
1x Dead of Winter
1x Disdainful Stroke
2x Dovin's Veto
1x Kaya's Guile
3x Leyline of Sanctity
1x Pithing Needle
1x Rebuild
2x Shadow of Doubt
1x Utter End
For upgrades first place is replacing wilds and a couple of basics for 4 vista and 2 fabled passage
Also avoid pact of negation unless you are a combon deck. As the price is very steep.
Add some creature lands
I would also add some pure card advantage cards and some card filters to help when digging for answers
Competitive Decks
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Monkey Conservation WUGR ---- Dragon WorshipR