Cheapest priced copy (Marvel Super Heroes Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Origin of Thor 
Enchantment — Saga · Uncommon · Marvel Super Heroes Commander · #701
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — You may discard a card. If you do, draw two cards.
II — Whenever you cast a spell this turn, put a +1/+1 counter on target creature you control.
III — Target creature you control deals damage equal to its power to each opponent.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes Commander | 701 | Uncommon | $0.49 | $0.99 |