Captain Rex Nebula's ability isn't working.

[floral plume]

You can't use his ability do to not being able to crew vehicles during combat faze. (This is the reason I joined this server)

[chilly sleet]

[[Captain Rex Nebula]]

[proper thunder]

https://scryfall.com/card/unf/164/captain-rex-nebula

Captain Rex Nebula <:mana1:292901508373282827><:manar:292901508796645397><:manaw:1007102126813610074>

Legendary Creature — Human Pilot Employee
At the beginning of combat on your turn, choose target nonland permanent you control. Until end of turn, it becomes a Vehicle artifact with base power and toughness each equal to its mana value, and it gains crew 2 and "Crash Land — Whenever this Vehicle deals damage, roll a six-sided die. If the result is equal to this Vehicle's mana value, sacrifice this Vehicle, then it deals that much damage to any target."
2/2

[chilly sleet]

Screenshot?

[dreamy raft]

works for me, does your beginning of combat step have a stop on it?

[floral plume]

No it did not