Budget Alternatives to Earthquake Dragon

Curious Cadaver $0.04 2UB · Zombie Detective Flying Gollum, Patient Plotter $0.22 1B · Halfling Horror When Gollum leaves the battlefield, the Ring tempts you. Tymaret, the Murder King $0.22 BR · Zombie Warrior {1}{R}, Sacrifice another creature: Tymaret deals 2 damage to target player or planeswalker. Llanowar Greenwidow $0.22 2G · Spider Reach, trample Lochmere Serpent $0.25 4UB · Serpent Flash Sproutback Trudge $0.31 7GG · Fungus Beast This spell costs {X} less to cast, where X is the amount of life you gained this turn. World Breaker $0.34 6G · Eldrazi Devoid Grafted Butcher $0.34 1B · Phyrexian Samurai When this creature enters, Phyrexians you control gain menace until end of turn. Unshakable Tail $0.35 2B · Zombie Detective When this creature enters and at the beginning of your upkeep, surveil 1. Sephiroth, Fallen Hero $0.41 3RW · Human Avatar Soldier Jenova Cells — Whenever Sephiroth attacks, you may put a cell counter on target creature. Jarad, Golgari Lich Lord $0.52 BBGG · Zombie Elf Jarad gets +1/+1 for each creature card in your graveyard. Ghalta, Primal Hunger $0.66 10GG · Elder Dinosaur This spell costs {X} less to cast, where X is the total power of creatures you control. Nyxborn Behemoth $1.37 10GG · Beast This spell costs {X} less to cast, where X is the total mana value of noncreature enchantments yo... Sunderflock $1.80 7UU · Elemental This spell costs {X} less to cast, where X is the greatest mana value among Elementals you control.