Budget Alternatives to Hall of Gemstone

Ley Line $0.20 3G · Enchantment At the beginning of each player's upkeep, that player may put a +1/+1 counter on target creature ... Doom Foretold $0.30 2WB · Enchantment At the beginning of each player's upkeep, that player sacrifices a nonland, nontoken permanent of... Lavabrink Floodgates $0.32 3R · Artifact {T}: Add {R}{R}. Oath of Scholars $0.41 3U · Enchantment At the beginning of each player's upkeep, that player chooses target player who has more cards in... Mist of Stagnation $0.45 3UU · Enchantment Permanents don't untap during their controllers' untap steps. Molder Slug $0.47 3GG · Slug Beast At the beginning of each player's upkeep, that player sacrifices an artifact of their choice. Oath of Mages $0.50 1R · Enchantment At the beginning of each player's upkeep, that player chooses target player who has more life tha... Alexios, Deimos of Kosmos $0.56 3R · Human Berserker Trample Thelon's Curse $0.57 GG · Enchantment Blue creatures don't untap during their controllers' untap steps. Greener Pastures $0.59 2G · Enchantment At the beginning of each player's upkeep, if that player controls more lands than each other play... Chaos Moon $0.78 3R · Enchantment At the beginning of each upkeep, count the number of permanents. Destructive Flow $1.35 BRG · Enchantment At the beginning of each player's upkeep, that player sacrifices a nonbasic land of their choice. Teferi's Realm $1.95 1UU · World Enchantment At the beginning of each player's upkeep, that player chooses artifact, creature, land, or non-Au...