Cheapest priced copy (Commander Legends): $0.35 at Card Kingdom, near mint, their price list as of .
Ninth Bridge Patrol 
Creature — Dwarf Soldier · 1/1 · Common · Commander Legends · #33
Whenever another creature you control leaves the battlefield, put a +1/+1 counter on this creature.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends | 33 | Common | $0.35 | $0.49 |
| Jumpstart 2022 | 221 | Common | $0.35 | — |
| Kaladesh | 22 | Common | $0.35 | $0.49 |
| The List | KLD-22 | Common | $0.35 | — |
2 rulings from Wizards of the Coast
- 10 November 2020Ninth Bridge Patrol's ability doesn't care where the creature went or whether it's a creature in its new zone. It may have died, been exiled, returned to your hand, and so on. It won't trigger if an object remains on the battlefield but ceases to be a creature. It won't trigger if a creature phases out.
- 10 November 2020If Ninth Bridge Patrol is dealt lethal damage at the same time as another creature you control, it won't receive a counter from its ability in time to save it.