Cheapest priced copy (Crimson Vow Commander): $1.49 at Card Kingdom, near mint, their price list as of .
Doom Weaver 
Creature — Spider Horror · 1/8 · Rare · Crimson Vow Commander · #72
Reach
Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as Doom Weaver is paired with another creature, each of those creatures has "When this creature dies, draw cards equal to its power."
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $1.49 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Crimson Vow Commander | 34 | Rare | $1.49 | — |
| Crimson Vow Commander | 72 | Rare | $1.99 | — |
One ruling from Wizards of the Coast
- 19 November 2021Use the creature's power as it last existed on the battlefield to determine how many cards to draw.