Cheapest priced copy (Secret Lair Drop): $6.49 at Card Kingdom, near mint, their price list as of .
Rite of Passage 
Enchantment · Rare · Fifth Dawn · #91
Whenever a creature you control is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $6.49 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fifth Dawn | 91 | Rare | $7.99 | $8.99 |
| Secret Lair Drop | 1739 | Rare | $6.49 | $6.99 |
2 rulings from Wizards of the Coast
- 1 December 2004If the creature is dealt damage by more than one source at the same time, it gets only one counter.
- 1 December 2004The creature doesn’t get a counter if all the damage that would be dealt to it is prevented.