Budget Alternatives to Thought-Knot Seer

Temporal Intervention $0.04 2B · Sorcery Void — This spell costs {2} less to cast if a nonland permanent left the battlefield this turn or... Pick the Brain $0.05 2B · Sorcery Target opponent reveals their hand. Aggressive Negotiations $0.06 2B · Sorcery Target opponent reveals their hand. Entomber Exarch $0.08 2BB · Phyrexian Cleric When this creature enters, choose one — Doomfall $0.08 2B · Sorcery Choose one — Sin Collector $0.09 1WB · Human Cleric When this creature enters, target opponent reveals their hand. Gastal Raider $0.09 2B · Vampire Rogue Start your engines! Nimble Larcenist $0.10 WUB · Bird Rogue Flying Severance Priest $0.11 WBG · Djinn Cleric Deathtouch Kitesail Freebooter $0.16 1B · Human Pirate Flying Psychic Intrusion $0.16 3UB · Sorcery Target opponent reveals their hand. Castigate $0.18 WB · Sorcery Target opponent reveals their hand. Brain Maggot $0.20 1B · Insect When this creature enters, target opponent reveals their hand and you choose a nonland card from it. Thought-Stalker Warlock $0.22 2B · Lizard Warlock Menace Thought Prison $0.22 5 · Artifact Imprint — When this artifact enters, you may have target player reveal their hand. Tidehollow Sculler $0.34 WB · Zombie When this creature enters, target opponent reveals their hand and you choose a nonland card from it. Lifebane Zombie $0.35 1BB · Zombie Warrior Intimidate Mesmeric Fiend $1.81 1B · Nightmare Horror When this creature enters, target opponent reveals their hand and you choose a nonland card from it.