Budget Alternatives to Mystic Speculation

Stymied Hopes $0.03 1U · Instant Counter target spell unless its controller pays {1}. Riddleform $0.05 1U · Enchantment Whenever you cast a noncreature spell, you may have this enchantment become a 3/3 Sphinx creature... Tidepool Turtle $0.09 3U · Turtle {2}{U}: Scry 1. Hedron Alignment $0.13 2U · Enchantment Hexproof Aether Theorist $0.14 1U · Vedalken Rogue When this creature enters, you get {E}{E}{E} . Sigiled Starfish $0.15 1U · Starfish {T}: Scry 1. Quandrix Campus $0.18 Land This land enters tapped. Innocuous Insect $0.23 1UU · Eldrazi Insect Buyback {1}{U} Spell Burst $0.24 XU · Instant Buyback {3} Castle Vantress $0.30 Land This land enters tapped unless you control an Island. Prismari Campus $0.30 Land This land enters tapped. Joint Exploration $0.34 1U · Instant Kicker {G} Mind Games $0.36 U · Instant Buyback {2}{U} Clockspinning $0.39 U · Instant Buyback {3} Condescend $0.39 XU · Instant Counter target spell unless its controller pays {X}. Princess Yue $0.90 2U · Human Noble Ally When Princess Yue dies, if she was a nonland creature, return this card to the battlefield tapped... Rivendell $1.46 Legendary Land Rivendell enters tapped unless you control a legendary creature.