Sacrifice a creature: Put a charge counter on Spawning Pit. {1}, Remove two charge counters from Spawning Pit: Create a 2/2 colorless Spawn artifact creature token.
Spawning Pool enters the battlefield tapped. {T}: Add {B}. {1}{B}: Spawning Pool becomes a 1/1 black Skeleton creature with "{B}: Regenerate this creature" until end of turn. It's still a land.
Annihilator 1 {4}: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}." {20}: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.
When you planeswalk to Spectrox Mines and at the beginning of your upkeep, you lose 3 life and create a Treasure token. Whenever chaos ensues, create a Food token and a 2/2 black Human Rogue creature token.
Magecraft — Whenever you cast or copy an instant or sorcery spell, put a book counter on Spell Satchel. {T}, Remove a book counter from Spell Satchel: Add {C}. {3}, {T}, Remove three book counters from Spell Satchel: Draw a card.
Magecraft — Whenever you cast or copy an instant or sorcery spell, put a book counter on Spell Satchel. {T}, Remove a book counter from Spell Satchel: Add {C}. {2}, {T}, Remove two book counters from Spell Satchel: Draw a card.
Devoid Counter target spell unless its controller pays {4}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
Imprint — When Spellbinder enters the battlefield, you may exile an instant card from your hand. Whenever equipped creature deals combat damage to a player, you may copy the exiled card. If you do, you may cast the copy without paying its mana cost. Equip {4}
"Everything the wise woman learned she wrote in a book, and when the pages were black with ink, she took white ink and began again." —Karn, silver golem
Imprint — When Spellweaver Helix enters the battlefield, you may exile two target sorcery cards from a single graveyard. Whenever a player casts a card, if it has the same name as one of the cards exiled with Spellweaver Helix, you may copy the other. If you do, you may cast the copy without paying its mana cost.
Sphere of the Suns enters the battlefield tapped and with three charge counters on it. {T}, Remove a charge counter from Sphere of the Suns: Add one mana of any color.
Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.
Flash {5}, {T}, Sacrifice Spiked Pit Trap: Choose target creature, then roll a d20. 1—9 | Spiked Pit Trap deals 5 damage to that creature. 10—20 | Spiked Pit Trap deals 5 damage to that creature. Create a Treasure token.