Tracking for not yet implemented cards from very old sets.

This is for old cards that do not have tracking set issues. (If a card is checked, then someone is working on it.)
This list voluntarily excludes Ante cards (#11319), and text changing cards (#2082), as well as [Shahrazad](https://scryfall.com/card/arn/10/shahrazad).

As a note, the cards may have been reprinted in other sets. Make sure to double check collector numbers if you implement these cards (as they were renumbered once in the past).

- [ ] [LEA] [Illusionary Mask](https://scryfall.com/card/lea/249/illusionary-mask)
- [ ] [LEG] [Falling Star](https://scryfall.com/card/leg/145/falling-star) -- with an errata to not have dexterity involved. See Chaos Orb current implementation.
- [ ] [LEG] [Equinox](https://scryfall.com/card/leg/13/equinox)
- [ ] [LEG] [Silhouette](https://scryfall.com/card/leg/77/silhouette)
- [ ] [LEG] [Backdraft](https://scryfall.com/card/leg/132/backdraft)
- [x] [LEG] [Firestorm Phoenix](https://scryfall.com/card/leg/147/firestorm-phoenix)
- [ ] [LEG] [Quarum Trench Gnomes](https://scryfall.com/card/leg/162/quarum-trench-gnomes)
- [ ] [LEG] [North Star](https://scryfall.com/card/leg/288/north-star)
- [ ] [DRK] [Frankenstein's Monster](https://scryfall.com/card/drk/45/frankensteins-monster)
- [ ] [DRK] [Whippoorwill](https://scryfall.com/card/drk/91/whippoorwill)
- [ ] [DRK] [Reflecting Mirror](https://scryfall.com/card/drk/106/reflecting-mirror)

Implemented:

- [x] [LEG] [Takklemaggot](https://scryfall.com/card/leg/119/takklemaggot)
- [x] [PHPR] [Sewers of Estark](https://scryfall.com/card/phpr/2/sewers-of-estark)

Start by reviewing the existing Chaos Orb implementation and the linked Scryfall entries for the unchecked cards, paying attention to collector numbers and the Falling Star errata. Done means the remaining unchecked cards from LEA, LEG, and DRK are implemented with their listed behavior and the tracking list reflects their status.

Written by the indexing model from the issue text.