It's not a mess, I know EXACTLY where everything is

1 Urza, Lord High Artificer

Creature 17

1 Burnished Hart 1 Etherium Sculptor 1 Hullbreacher 1 Master of Etherium 1 Master Transmuter 1 Memnarch 1 Mycosynth Golem 1 Myr Battlesphere 1 Phyrexian Revoker 1 Sakashima's Protege 1 Solemn Simulacrum 1 Soul of New Phyrexia 1 Sphinx of the Second Sun 1 Steel Overseer 1 Thieving Skydiver 1 Treasure Mage 1 Wurmcoil Engine

Planeswalker 6

1 Jace, Wielder of Mysteries 1 Karn, Scion of Urza 1 Karn, the Great Creator 1 Teferi, Master of Time 1 Ugin, the Ineffable 1 Ugin, the Spirit Dragon

Spell 40

1 Argivian Restoration 1 Batterskull 1 Blatant Thievery 1 Blinkmoth Urn 1 Clone Legion 1 Conjurer's Closet 1 Echo Storm 1 Elixir of Immortality 1 Everflowing Chalice 1 Expropriate 1 Font of Mythos 1 Forsaken Monument 1 Glaring Spotlight 1 Glasses of Urza 1 God-Pharaoh's Statue 1 Howling Mine 1 Ichor Wellspring 1 Lightning Greaves 1 Liquimetal Coating 1 Lithoform Engine 1 Mirage Mirror 1 Mirrormade 1 Mnemonic Deluge 1 Mycosynth Wellspring 1 Paradox Engine 1 Propaganda 1 Relic of Progenitus 1 Retrofitter Foundry 1 Rings of Brighthearth 1 Scroll Rack 1 Shadowspear 1 Sol Ring 1 Static Orb 1 Stolen Identity 1 Sun Droplet 1 Thopter Spy Network 1 Urza's Armor 1 Wayfarer's Bauble 1 Witchbane Orb 1 Worn Powerstone

Land 36

1 Academy Ruins 1 Ancient Tomb 1 Arcane Lighthouse 1 Ash Barrens 1 Darksteel Citadel 23 Island 1 Karn's Bastion 1 Labyrinth of Skophos 1 Reliquary Tower 1 Rogue's Passage 1 Seat of the Synod 1 Urza's Mine 1 Urza's Power Plant 1 Urza's Tower