Budget Alternatives to Doubling Cube

Dragonsguard Elite $0.15 1G · Human Druid Magecraft — Whenever you cast or copy an instant or sorcery spell, put a +1/+1 counter on this cr... Vorthos, Steward of Myth $0.18 1R · Human Gamer As Vorthos, Steward of Myth enters, choose a named Magic character. Ragemonger $0.20 1BR · Minotaur Shaman Minotaur spells you cast cost {B}{R} less to cast. Synth Eradicator $0.21 2R · Synth Soldier Haste Pia Nalaar, Chief Mechanic $0.27 GUR · Human Artificer Whenever one or more artifact creatures you control deal combat damage to a player, you get {E}{E} . Razorfield Ripper $0.28 2W · Equipment Rhino Whenever this creature or equipped creature attacks, you get {E} , then it gets +X/+X until end o... Vorel of the Hull Clade $0.30 1GU · Human Merfolk {G}{U}, {T}: Double the number of each kind of counter on target artifact, creature, or land. Jerren, Corrupted Bishop // Ormendahl, the Corrupter $0.42 Human Cleric // Legendary Creature — Demon Whenever Jerren enters or another nontoken Human you control dies, you lose 1 life and create a 1... Evolution Vat $0.48 3 · Artifact {3}, {T}: Tap target creature and put a +1/+1 counter on it. Bard Class $0.52 RG · Class Legendary creatures you control enter with an additional +1/+1 counter on them. Edgewalker $0.59 1WB · Human Cleric Cleric spells you cast cost {W}{B} less to cast. Glissa Sunseeker $0.74 2GG · Elf Warrior First strike Gilder Bairn $0.80 1G/UG/U · Ouphe {2}{G/U}, {Q}: Double the number of each kind of counter on target permanent. Everythingamajig $1.10 5 · Artifact {2}, {T}: Draw a card. Aetheric Amplifier $1.38 3 · Artifact {T}: Add one mana of any color. Pygmy Hippo $1.85 GU · Hippo Whenever this creature attacks and isn't blocked, you may have defending player activate a mana a... Zimone, Paradox Sculptor $1.87 2GU · Human Wizard At the beginning of combat on your turn, put a +1/+1 counter on each of up to two target creature...