Deus ex Machina is the common term for a trope in which something not previously established (originally, a god) suddenly appears to resolve the plot. It's an old enough term that it's used here in the wiki. It's also surprisingly punnable, and that's what's going on here.
Tropes following this pattern:
- All Just a Dream
- Ass Pull
- Deus Ax Machina
- Deus ex Machina
- Deus ex Nukina
- Deus ex 'Scuse Me
- Deus Exit Machina
- Deus Sex Machina
- Diabolus ex Machina
- Diabolus ex Nihilo
- Good Fortune from God
- Not Too Dead to Save the Day
- Parent ex Machina
Not conceptually related:
- Ave Machina is not conceptually related.
- Deus Angst Machina is not conceptually related.
- Deus Est Machina is not conceptually related.
- Deus Ex Homine is not conceptually related.
See also:
- How to Stop the Deus ex Machina
- "Deus Ex Sewing Machina" — see Problem Sleuth
- Deus Ex
- Daemon X Machina
- Ex Machina
- And this Ex Machina