Budget Alternatives to Phyrexian Dreadnought

Ravenous Necrotitan $0.08 2BB · Phyrexian Horror Corrupted — When this creature enters, sacrifice a creature unless an opponent has three or more ... Devouring Hellion $0.09 2R · Hellion As this creature enters, you may sacrifice any number of creatures and/or planeswalkers. Scythe Tiger $0.12 G · Cat Shroud Vulshok War Boar $0.14 2RR · Boar Beast When this creature enters, sacrifice it unless you sacrifice an artifact. Rogue Elephant $0.16 G · Elephant When this creature enters, sacrifice it unless you sacrifice a Forest. Vile Mutilator $0.16 5BB · Demon As an additional cost to cast this spell, sacrifice a creature or enchantment. Demonlord of Ashmouth $0.23 2BB · Demon Flying Primeval Force $0.24 2GGG · Elemental When this creature enters, sacrifice it unless you sacrifice three Forests. Plant Elemental $0.29 1G · Plant Elemental When this creature enters, sacrifice it unless you sacrifice a Forest. Malevolent Witchkite $0.30 4BB · Dragon Warlock Flying Angelic Aberration $0.37 5W · Eldrazi Angel Devoid Jokulmorder $0.39 4UUU · Leviathan Trample Megatherium $0.43 2G · Beast Trample Shivan Wumpus $0.44 3R · Beast Trample Bristlebud Farmer $1.32 2GG · Plant Druid Trample