Cheapest priced copy (March of the Machine Commander): $0.35 at Card Kingdom, near mint, their price list as of .
Knight of the Last Breath 
Creature — Giant Knight · 4/4 · Uncommon · Ravnica Allegiance · #188
{3}, Sacrifice another nontoken creature: Create a 1/1 white and black Spirit creature token with flying.
Afterlife 3 (When this creature dies, create three 1/1 white and black Spirit creature tokens with flying.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine Commander | 331 | Uncommon | $0.35 | — |
| Ravnica Allegiance | 188 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 25 January 2019Because blockers are chosen all at once, you can't block with a creature with afterlife, wait for it to die, then block with the resulting Spirit tokens.