I really like this list a lot, actually. Reminiscent of Moxnix's Grixis Storm but with some personal touches that I think make it feel like your own. I think the only suggestion that I might consider is Ad Nauseam. I think that your CMC average is low enough that you could get away with about 1-2 life per card.
A card that I'm fond of recently is Cut // Ribbons. It's got a lot of utility, being an early game removal spell for a problematic general while also being a mana dump in your 'yard on that critical storm turn to keep the Engine humming along. I've been really enamored of Paradox Engine and Grixis colors, and I'm using it in my more casual Nicol Bolas deck for Dralnu synergies, being able to net mana in a non-oppressive way (according to my opponents), and to also capitalize on The Chain Veil interactions for the three Nicol Bolas incarnations.
Great deck though. I do agree that you need more than just tendrils to win the game. Cut // Ribbons sounds perfect, but then you may want more ritual Mana cards
1x Baral, Chief of Compliance
1x Jace, Vryn's Prodigy
1x Notion Thief
1x Snapcaster Mage
1x Talrand, Sky Summoner
1x The Locust God
Enchantment (2)
1x Mystic Remora
1x Search for Azcanta
Artifact (15)
1x Aetherflux Reservoir
1x Chromatic Lantern
1x Darksteel Ingot
1x Dimir Signet
1x Fellwar Stone
1x Gilded Lotus
1x Isochron Scepter
1x Izzet Signet
1x Paradox Engine
1x Primal Amulet
1x Rakdos Signet
1x Sol Ring
1x Talisman of Dominance
1x Talisman of Indulgence
1x Thought Vessel
Instant (23)
1x Arcane Denial
1x Blue Sun's Zenith
1x Brainstorm
1x Capsize
1x Counterspell
1x Cyclonic Rift
1x Dark Ritual
1x Dig Through Time
1x Disallow
1x Dramatic Reversal
1x Force of Will
1x Frantic Search
1x Hero's Downfall
1x Impulse
1x Into the Roil
1x Mystical Tutor
1x Negate
1x Reality Shift
1x Reiterate
1x Swan Song
1x Think Twice
1x Turnabout
1x Vampiric Tutor
1x Ancestral Vision
1x Blasphemous Act
1x Careful Study
1x Damnation
1x Dark Petition
1x Demonic Tutor
1x Fabricate
1x Faithless Looting
1x Merchant Scroll
1x Ponder
1x Portent
1x Preordain
1x Pull from the Deep
1x Serum Visions
1x Tendrils of Agony
1x Toxic Deluge
1x Vandalblast
1x Yawgmoth's Will
Land (34)
1x Academy Ruins
1x Blood Crypt
1x Bloodstained Mire
1x Bojuka Bog
1x Cascade Bluffs
1x Command Tower
1x Crumbling Necropolis
1x Dragonskull Summit
1x Drowned Catacomb
1x Exotic Orchard
1x Graven Cairns
7x Island
2x Mountain
1x Reflecting Pool
1x Reliquary Tower
1x Riptide Laboratory
1x Shivan Reef
1x Steam Vents
1x Strip Mine
1x Sulfur Falls
1x Sulfurous Springs
1x Sunken Ruins
2x Swamp
1x Underground River
1x Urborg, Tomb of Yawgmoth
1x Watery Grave
I buy HP and Damaged cards!
Only EDH:
Sigarda, Host of Herons: Enchantress' Enchantments
Jenara, Asura of War: ETB Value Town
Purphoros, God of the Forge: Global Punishment
Xenagos, God of Revels: Ramp, Sneak, & Heavy Hitters
Ghave, Guru of Spores: Dies_to_Doom_Blade's stax list
Edric, Spymaster of Trest: Donald's list
A card that I'm fond of recently is Cut // Ribbons. It's got a lot of utility, being an early game removal spell for a problematic general while also being a mana dump in your 'yard on that critical storm turn to keep the Engine humming along. I've been really enamored of Paradox Engine and Grixis colors, and I'm using it in my more casual Nicol Bolas deck for Dralnu synergies, being able to net mana in a non-oppressive way (according to my opponents), and to also capitalize on The Chain Veil interactions for the three Nicol Bolas incarnations.
UB Dralnu, Lich Lord
RBW [Primer]-Kaalia of the Vast
BUG [Primer]-Tasigur, the Golden Fang
GWU [Primer]-Arcades, the Strategist
WUB Primer-Aminatou, the Fateshifter
UBR Nicol Bolas, the Ravager
I would also suggest Pyromancer's Ascension. Edit NEVER MIND
Great deck though. I do agree that you need more than just tendrils to win the game. Cut // Ribbons sounds perfect, but then you may want more ritual Mana cards
Draft My Cube!