When determining the subtype of a card that has gained and lost subtypes, a running total should be tracked. The final subtype that a card is determined to have is the net change in its subtypes.
Question
I have a Wendigo installed and advanced once. Runner is Kit and makes a run, and Wendigo is the first piece of ice she encountered this turn. Is Wendigo Code Gate or not?
And what if instead of Kit it was any other runner using Tinkering instead? and what about Paintbrush?
Answer
When a card gains and loses a trait multiple times, you should keep a running total to see if the card has that trait. So if you advance Wendigo so that it loses code gate, but then it gains a second code gate subtype with Tinkering, Kit, or Paintbrush, then it is considered a code gate since it has two instances of code gate and has only lost it once.
Implications
Along with the Breaking Subroutines on NEXT Silver, Ashigaru Rulings, it seems that ice characteristics are managed by running totals.
Source
Posted to Board Game Geek by Michael Redston on September 22, 2014