Budget Alternatives to Forethought Amulet

Goblin Boom Keg $0.05 4 · Artifact At the beginning of your upkeep, sacrifice this artifact. Disruption Aura $0.09 2U · Aura Enchant artifact Justice $0.17 2WW · Enchantment At the beginning of your upkeep, sacrifice this enchantment unless you pay {W}{W}. Tourach's Chant $0.20 1BB · Enchantment At the beginning of your upkeep, sacrifice this enchantment unless you pay {B}. Mangara's Equity $0.24 1WW · Enchantment As this enchantment enters, choose black or red. Thelon's Chant $0.31 1GG · Enchantment At the beginning of your upkeep, sacrifice this enchantment unless you pay {G}. Piru, the Volatile $0.33 2RRWWBB · Elder Dragon Flying, lifelink Molten-Tail Masticore $0.34 4 · Masticore At the beginning of your upkeep, sacrifice this creature unless you discard a card. Mishra's War Machine $0.41 7 · Juggernaut Banding Torture Chamber $0.48 3 · Artifact At the beginning of your upkeep, put a pain counter on this artifact. Pit Spawn $0.58 4BBB · Demon First strike Nicol Bolas $1.33 2UUBBRR · Elder Dragon Flying Kataki, War's Wage $1.39 1W · Spirit All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {1}."