Budget Alternatives to Opposition Agent

Covetous Urge $0.05 U/BU/BU/BU/B · Sorcery Target opponent reveals their hand. Kotose, the Silent Spider $0.15 3UB · Human Ninja When Kotose enters, exile target card other than a basic land card from an opponent's graveyard. Breeches, Brazen Plunderer $0.19 3R · Goblin Pirate Menace Petty Larceny $0.22 3B · Sorcery Freerunning {1}{B} Evelyn, the Covetous $0.28 2U/BBB/R · Vampire Rogue Flash Predators' Hour $0.33 1B · Sorcery Until end of turn, creatures you control gain menace and "Whenever this creature deals combat dam... Siphon Insight $0.33 UB · Instant Look at the top two cards of target opponent's library. Outrageous Robbery $0.34 XBB · Instant Target opponent exiles the top X cards of their library face down. Arvinox, the Mind Flail $0.34 4BBB · Horror Arvinox isn't a creature unless you control three or more permanents you don't own. Mezzio Mugger $0.35 4R · Lizard Rogue Whenever this creature attacks, exile the top card of each player's library. Author of Shadows $0.36 4B · Shade Warlock When this creature enters, exile all opponents' graveyards. Elder Brain $0.78 5BB · Horror Menace Robber of the Rich $1.40 1R · Human Archer Rogue Reach, haste