That's 5
I'm going to assume you don't have any responses since I think you just have the Ingot untapped which only gives a colorless so... if you do, we'll back up
Nath of the Gilt-Leaf, triggering Yidris for cascade and Aberration for you to reveal cards. I'll choose to stack Aberration and Yidris so Yidris resolves first. I exile Reforge the Soul and cast it from exile. Your discarding of your hand of 7 seven cards triggers Sangromancer so I gain 21 life.
Aberration can resolve to you can reveal cards until you get a land card, but since that doesn't affect my turn, I'll finish by playing a Mt and be done.
Spidey: 90
Dmg from Commander: 8/21
Hand: 6
Library: 57
Commander Zone (cast twice): UBRG
Battlefield:
(T) Swamp
(T) Island
(T,U) Mt x2
(T) Forest
(T) Savage Lands (~ ETB tapped.; T: Add B, R, or G to my mana pool)
(T) Thornwood Falls (~ ETB tapped.; When ~ ETB, I gain 1 life.; T: Add G or U to my mana pool)
(T) Frontier Bivouac (~ ETB tapped.; T: Add G, U, or R to my mana pool)
(T) Exotic Orchard (T: Add one mana of any color that a lands Mooseman controls can produce)
(T) Shadowblood Ridge (1, T: Add BR to my mana pool)
Burgeoning (Whenever Mooseman plays a land, I may put a land card from my hand onto the battlefield)
(U)
Chromatic Lantern (Lands I control have "T: Add one mana of any color to my mana pool".; T: Add one mana of any color to my mana pool)
(T)
Simic Signet (1, T: Add GU to my mana pool)
(U)
Whispersilk Cloak (Equipped creature can't be blocked and has shroud.; Equip 2)
(T)
Sangromancer (
8/8 from ctrs; Flying; Whenever a creature Mooseman controls dies, I may gain 3 life.; Whenever Mooseman discards a card, I may gain 3 life) *5 +1/+1 ctrs*
(T)
Yidris, Maelstrom Wielder (Legendary Creature-Ogre Wizard; 5/4;
~ can't be blocked and has shroud from Cloak; Whenever ~ deals combat dmg to a player, as I cast spells from my hand this turn, they gain cascade (
When I cast the spell, exile cards from the top of my library until I exile a nonland card that costs less. I may cast it without paying its mana cost. Put the exiled cards on the bottom of my library in a random order) *Equipped w/Cloak*
(U)
Consuming Aberration (
26/26; ~'s power and toughness are each equal to the # of cards in Mooseman's graveyard.; Whenever I cast a spell, Mooseman reveals cards from the top of his library until he reveals a land card, then puts those cards into his graveyard)
(S)
Nath of the Gilt-Leaf (4/4; At the beginning of my upkeep, I may have Mooseman discard a card at random.; Whenever Mooseman discards a card, I may create a 1/1 green Elf Warrior creature token)
Graveyard: Windfall, Rakdos Charm, Trasios-Triton Hero, Worm Harvest, , Goblin Spymaster, Chaos Warp, Cruel Entertainment, Grave Upheaval, Fellwar Stone, Kydele-Chosen of Kruphix, Island,
Commander's Sphere, Glint-Eye Nephilium, Curtains' Call, Reforge the Soul, Treacherous Terrain, Evolving Wilds, Whims of Fate, Reliquary Tower
Exile: Runehorn Hellkite
============================================================================
Mooseman: 26
Dmg from Commander: 10/21
Hand: 7 new cards
Library: 60 - 53 - minus more for reveal from Aberration's ability
Commander Zone (cast twice): GWUB
(TTT) Plains
(T) Island
(TTT) Forest
(T) Exotic Orchard ( T: Add to your mana pool one mana of any color that a land an opponent controls could produce.)
(T) Seaside Citadel (ETB tapped. T: Add G, W, or U to your mana pool.)
(T) Underground River (T: Add {C} to your mana pool. T: Add {U} or {B} to your mana pool. ~ deals 1 damage to you.)
(T) Temple of the False God (, L, T: Add {C}{C} to your mana pool. Activate this ability only if you control five or more lands)
(U) Darksteel Ingot (, A, Indestructible. {T}: Add one mana of any color to your mana pool.)
(T) Fellwar Stone (, A, T: Add to your mana pool one mana of any color that a land an opponent controls could produce.)
Citadel Siege (, E, As Citadel Siege enters the battlefield, • Dragons — At the beginning of combat on each opponent's turn, tap target creature that player controls.)
Hardened Scales (, E, If one or more +1/+1 counters would be placed on a creature you control, that many plus one +1/+1 counters are placed on it instead.)
(T)
Cauldron of Souls (, A, T: Choose any number of target creatures. Each of those creatures gains persist until end of turn. (When it's put into a graveyard from play, if it had no -1/-1 counters on it, return it to play under its owner's control with a -1/-1 counter on it.))
(U)
Atraxa, Praetor's Voice (Legendary Creature-Angel Horror; 4/4; Flying, vigilance, deathtouch, lifelink; At the beginning of my end step, proliferate)
Graveyard: Evolving Wilds,
Forgotten Ancient, Manifold Insights, Duelist's Heritage, Terramorphic Expanse, Orzhov Signet, Deepglow Skate, Kalonian Hydra, Ghave-
Guru of Spores, Doubt Full, No Response, Murmuring Bosk, Dune Blast, Mirror Weave, Astral Cornucopia, Ishai, Ojutai Dragonspeaker, Swamp,
Crystalline Crawler, Corpsejack Menace, seven cards from hand
Exile: