Cheapest priced copy (Foundations Commander): $1.29 at Card Kingdom, near mint, their price list as of .
Diregraf Colossus 
Creature — Zombie Giant · 2/2 · Rare · Shadows over Innistrad · #107
This creature enters with a +1/+1 counter on it for each Zombie card in your graveyard.
Whenever you cast a Zombie spell, create a tapped 2/2 black Zombie creature token.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $1.29 to $12.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Commander | 96 | Rare | $1.29 | — |
| Midnight Hunt Commander | 112 | Rare | $4.99 | — |
| Shadows over Innistrad Promos | 107s | Rare | — | $12.99 |
| Secret Lair Drop | 840 | Rare | — | $5.99 |
| Shadows over Innistrad | 107 | Rare | $5.49 | $6.99 |
2 rulings from Wizards of the Coast
- 8 April 2016Diregraf Colossus's last ability won't trigger when you cast it because it's not on the battlefield yet.
- 8 April 2016If Diregraf Colossus enters the battlefield from your graveyard, its first ability will count itself among the Zombie cards in your graveyard. Similarly, if it enters the battlefield at the same time as another Zombie card enters the battlefield from your graveyard, the ability will count that other Zombie.