Extended: U/B Trinket-Tron

4 Watery Grave
1 Academy Ruins
2 Tolaria West
1 Vault of Whispers
2 Island
1 Swamp
4 Urza's Tower
4 Urza's Mine
4 Urza's Power Plant
(23 Land)

1 Triskelion
1 Sundering Titan
3 Trinket Mage
(5 Creatures)

1 Chalice of the Void
1 Engineered Explosives
1 Executioner's Capsule
4 Dimir Signet
3 Chrome Mox
4 Thirst for Knowledge
3 Gifts Ungiven
1 Crucible of Worlds
1 Makeshift Mannequin
1 Mindslaver
3 Condescend
3 Spell Burst
3 Spell Snare
3 Damnation
(32 Other Spells)

1 Orochi Hatchery
1 Grim Poppet
...
(15 Sideboard Cards)

Pauper: The Combo Deck

I was inspired to design this Legacy Pauper deck after I rediscovered the fact that Lotus Petal was a common.

2 Ancient Spring
2 Geothermal Crevice
4 Sulfur Vent
4 Tinder Farm
4 Ravaged Highlands
2 Seafloor Debris
(18 Lands)

4 Simian Spirit Guide
(4 Creatures)

4 Lotus Petal
4 Seething Song
4 Rite of Flame
4 Dark Ritual
4 Desperate Ritual
2 Empty the Warrens
1 Kaervek's Torch
1 Fireball
4 Brainstorm
2 Ponder
4 Chromatic Star
4 Terrarion
(38 Other Spells)