Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Changeling Titan 
Creature — Shapeshifter · 7/7 · Uncommon · Lorwyn · #200
Changeling (This card is every creature type.)
Champion a creature (When this enters, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper