30/06/26 Update Bulletin - Rules changes

https://magic.wizards.com/en/news/announcements/marvel-super-heroes-update-bulletin Bunch of stuff announced from Wizards, we should confirm are implemented correctly. Some of these are just reannouncements of previously documented CR changes, but some are also Oracle text changes and more. Need to review.

Quick to-do list of things to follow:

* [x] 702.193 Power-up rule
* [x] 702.194 Teamwork rule
* [x] Vibranium Tokens
* [x] 601.5 Dividing damage based on cost, Captain America, First Avenger cited as example
* [x] 603.12a Conditionally triggered abilities based on when costs are paid
* [x] 700.16 Worthy defined
* [x] 702.122b "crewed by"
* [ ] Phasing and LKI. Check explore, connives, deathtouch, lifelink, wither, infect
* [x] 707.12a "may cast"
* [ ] Turning permanents face down (712.16, 730.2j)
* [ ] 800.4i Avenge, and when a player leaves the game
* [x] Itemised Special Actions that don't use the stack
* [x] New Card Types
* [x] Oracle updates
* [x] Doors of Durin
* [x] Elven Farsight
* [x] The Maelstrom
* [x] Karoline Dean, Runaway
* [x] Thran Turbine
* [x] Hulk's Thunderclap
* [x] Killmonger, Ruthless Usurper

ref: https://magic.wizards.com/en/rules

Start with the linked Marvel Super Heroes update bulletin and the current rules reference at magic.wizards.com/en/rules. Review the remaining unchecked items, especially phasing and last-known information, turning permanents face down, and Avenge when a player leaves the game. Done means the listed rule and Oracle changes are verified or implemented correctly.

Written by the indexing model from the issue text.