FOILCheapest priced copy (Time Spiral Remastered): $0.39 at Card Kingdom, near mint, their price list as of .
Fblthp, the Lost 
Legendary Creature — Homunculus · 1/1 · Rare · War of the Spark Promos · #50s
When Fblthp enters, draw a card. If it entered from your library or was cast from your library, draw two cards instead.
When Fblthp becomes the target of a spell, shuffle Fblthp into its owner's library.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
8 printings · $0.39 to $13.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | WAR-50 | Rare | $0.49 | — |
| War of the Spark Promos | 50p | Rare | $1.99 | $1.99 |
| War of the Spark Promos | 50s | Rare | — | $2.79 |
| Ravnica Remastered | 44 | Rare | $0.49 | $0.49 |
| Ravnica Remastered | 420 | Rare | $0.99 | $1.99 |
| Secret Lair Drop | 583 | Rare | $9.99 | $8.49 |
| Time Spiral Remastered | 308 | Special | $0.39 | $13.99 |
| War of the Spark | 50 | Rare | $0.49 | $0.79 |
5 rulings from Wizards of the Coast
- 19 March 2021If the spell that targets Fblthp has no other targets, it won't resolve (because it no longer has a legal target after Fblthp has gotten totally lost in your library).
- 19 March 2021If an effect exiles Fblthp from your library and then lets you cast that card, it's cast from exile, not from your library.
- 19 March 2021Fblthp's last ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
- 19 March 2021There's normally no way to cast Fblthp from your library or to have it enter the battlefield from your library. You'll have to use other effects to find Fblthp for the bonus card draw.
- 19 March 2021Fblthp's last ability triggers only if it's on the battlefield when it becomes the target of a spell.