Some people hate Derevi, some people love her. You are looking at this deck, so you probably at least like her. Now I can't provide you with great combos or new ideas, but you can help me to improve the deck.
Here you can see, what cards/key combos and plans I have:
Acidic Slime
repeatable artifact/enchantment/land destroy. Too good to be cut.
Alhammarret, High Arbiter
just some protection/combo breaker. Also he is a big flying beater. Going to be cut.
Angel of Jubilation great buff (can even buff colorless creatures), and hate, that doesn't hurt me. Too good to be cut.
Archaeomancer "all-blue-decks-star". Repeatable graveyard recursion. Too good to be cut.
Azami, Lady of Scrolls great draw engine. Not so many wizards in the deck, but I always have Derevi as a Wizard. In addition, Derevi's trigger gives me even more cards. Too good to be cut.
Bane of Progress incredible sweeper. Even if he kills my artifacts, he just gets fatter. Too good to be cut.
Dakra Mystic filter's opponent's draws. Don't have better options for now.
Deceiver Exarch
one of the best tap/untap creatures. Can be the key in some combos. Too good to be cut.
Diluvian Primordial steal some spells, than repeat. Too good to be cut.
Dungeon Geists
flying
Claustrophobia
. Too good to be cut.
Elvish Mystic standard mana dork. Has no reasons to be cut.
Elvish Visionary repeatable draw. Has no reasons to be cut.
Farhaven Elf classic ramp creature, that can be flickered. Has no reasons to be cut.
Flickerwisp great, because can exile any permanent. Conjurer's Closet
+
Flickerwisp
exiles any opponent's permanent until their end step. Too good to be cut.
Karmic Guide can be flickered in upkeep to avoid echo cost. Too good to be cut.
Kazandu Tuskcaller
finishes games when I need to beat faces. Too good to be cut.
Kiora's Follower usually acts like mana dork. Don't have better options for now.
Loxodon Smiter just a good beater against control. Don't have better options for now.
Lu Xun, Scholar General more draw and enables Derevi's trigger. Has no reasons to be cut.
Mercurial Pretender
it's here just because can be returned to my hand and abused. Going to change him for Clever Impersonator.
Mirror Entity finishes games and can turn my creatures in wizards for Azami, Lady of Scrolls. Too good to be cut.
Mistmeadow Witch one of the best flicker options. Also can protect me from opponent's creatures. Too good to be cut.
Mizzium Meddler budget Spellskite :D.
Murkfiend Liege massive buff and tapping creatures abuse. Too good to be cut.
Nissa, Vastwood Seer
Borderland Ranger for basic forests as a creature and a great planeswaker. Too good to be cut.
Ojutai, Soul of Winter
protective card, but can put the game into my hands. Has a synergy with Mirror Entity. Have no better options for now.
Phantom Nantuko
can become a monster with Derevi. Have no better options for now.
Pilgrim's Eye lesser Farhaven Elf. There is no too much ramp. Has no reasons to be cut.
Prophet of Kruphix key card "your turn is my turn". If an opponent has no answer, she wins the game.
Reclamation Sage one of the best creatures in it's category. Too good to be cut.
Roon of the Hidden Realm he is a bit slow, but for now, I have no better options.
Selesnya Guildmage
just one of the ways to spend extra mana. Has no better options for now.
Selvala, Explorer Returned I love her, opponents love her. Good card.
Skyward Eye Prophets
helps to filter lands and can be abused with Derevi. Have no better options for now.
Sphinx of Uthuun
has high flickering priority.
Fact or Fiction
on such a big creature is nuts.
Stormtide Leviathan can protect me from non-flying creatures or just beat someone to death. Have no better options for now.
Wonder beware! Flying elephants!
AEtherspouts can break someone's game.
Arcane Denial counterspell for 2 and draw a card? I take it!
Blue Sun's Zenith with infinite mana can even deck someone.
Cyclonic Rift people just hate it.
Disdainful Stroke counter big spells and be happy.
Dissipate spell removal.
Dissolve
scrying is always good.
Muddle the Mixture budget tutoring.
Ojutai's Command
not a cryptic, but command.
Path to Exile what removal can be better?
Render Silent
can shut combos down.
Selesnya Charm extra blocker/removal. Have no better options for now.
Armillary Sphere more ramp.
Azorius Keyrune
ramp/blocker.
Basalt Monolith cheaper Thran Dynamo in Derevi. Can generate infinite mana with Rings of Brighthearth.Bow of Nylea universal card.
Conjurer's Closet key card for flicker combos.
Cranial Archive
anti-mill + draw a card.
Grindclock another wincon in long games.
Selesnya Signet more mana.
Simic Signet I said MORE.
Swiftfoot Boots usually works as protection.
Sword of the Paruns
great for repeatable untapping.
Thousand-Year Elixir
more untapping + pseudo-haste.
Tormod's Crypt graveyard hate.
Urban Evolution nice draw spell with ramp.
Wash Out cheaper Cyclonic Rift.
Evolutionary Leap sacrifice Derevi, draw a creature. Repeat.
Flickerform
another save/flicker option.
Waiting for your suggestions and remember, that I'll add cards, that I'm going to add sooner.
Description will be improved too.