After that, start trying to get some token generators on the battlefield so you have fresh bodies each turn (or a ton all at once) that can be sacrifice fodder
I don't mind picking up copies of this at its current price point
From the multicoloured cards, there are nine Izzet (blue/red), four Azorius (white/blue), four Boros (red/white), four Simic (green/blue), three Dimir (blue/black), two Selesnya (green/white) one Rakdos (black/red), one Gruul (red/green), one Selesnya (green/white), two Orzhov (white/black), one Golgari (black/green),one Jeskai (blue/red/white), one Grixis (blue/black/red)
Table of Contents show What Is Changeling
Permanents that generate value every turn cycle with no extra effort: Seedborn Muse, Tergrid, Field of the Dead, Survival of the Fittest, Aura Shards
An 8/7 with vigilance for six is already an incredible value, but Gargos doesnt stop the bidding there