Budget Alternatives to Heartless Summoning

Golden-Tail Trainer $0.18 1GW · Fox Samurai Aura and Equipment spells you cast cost {X} less to cast, where X is this creature's power. Long-Forgotten Gohei $0.28 3 · Artifact Arcane spells you cast cost {1} less to cast. The Sibsig Ceremony $0.29 BBB · Legendary Enchantment Creature spells you cast cost {2} less to cast. Chatzuk, Mighty Guitarist $0.34 1GW · Human Bard Banding Hamza, Guardian of Arashin $0.34 4GW · Elephant Warrior This spell costs {1} less to cast for each creature you control with a +1/+1 counter on it. It That Heralds the End $0.36 1C · Eldrazi Drone Colorless spells you cast with mana value 7 or greater cost {1} less to cast. Honest Rutstein $0.40 1BG · Human Warlock When Honest Rutstein enters, return target creature card from your graveyard to your hand. Nogi, Draco-Zealot $0.43 1RR · Kobold Shaman Dragon spells you cast cost {1} less to cast. Oath of Ajani $0.51 GW · Legendary Enchantment When Oath of Ajani enters, put a +1/+1 counter on each creature you control. Bard Class $0.52 RG · Class Legendary creatures you control enter with an additional +1/+1 counter on them. Watcher of the Spheres $0.58 WU · Bird Wizard Flying Marauding Raptor $0.66 1R · Dinosaur Creature spells you cast cost {1} less to cast. Goblin Warchief $0.92 1RR · Goblin Warrior Goblin spells you cast cost {1} less to cast. Temur Battlecrier $1.86 GUR · Orc Ranger During your turn, spells you cast cost {1} less to cast for each creature you control with power ...