Cheapest priced copy (Kamigawa: Neon Dynasty): $0.59 at Card Kingdom, near mint, their price list as of .
Mechtitan Core 
Artifact — Vehicle · 2/4 · Rare · Kamigawa: Neon Dynasty · #249
{5}, Exile this Vehicle and four other artifact creatures and/or Vehicles you control: Create Mechtitan, a legendary 10/10 Construct artifact creature token with flying, vigilance, trample, lifelink, and haste that's all colors. When that token leaves the battlefield, return all cards exiled with this Vehicle except this card to the battlefield tapped under their owners' control.
Crew 2
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.59 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kamigawa: Neon Dynasty | 249 | Rare | $0.59 | $0.79 |
| Kamigawa: Neon Dynasty | 402 | Rare | $1.99 | $5.99 |
| Kamigawa: Neon Dynasty | 497 | Rare | $0.59 | $1.49 |
| Kamigawa: Neon Dynasty Promos | 249p | Rare | $0.59 | $0.99 |
| Kamigawa: Neon Dynasty Promos | 249s | Rare | — | $0.69 |