deck_mechanic_map
Map shared deck mechanics: keyword carrier counts, cost reductions, tribal types (including changelings), and trigger frequencies. Understand deck functionality beyond per-card data.
Instructions
Map the mechanics a deck SHARES — keyword carriers, tribal counts, trigger reach.
Every other tool here is indexed by card. This one is indexed by mechanic, and answers what per-card data cannot:
how many cards carry the commander's keyword (a deck with 15 carriers is not a loop toward one card, it is 15 destinations);
what a cost reducer ACTUALLY reduces, counted rather than assumed (rule 601.2f: a generic reduction never touches coloured pips);
who really has the tribal type, including changelings — every creature type by rule 702.73a, and invisible to a type-line search;
which triggers multiply per attacking creature versus firing once per combat.
Run this before writing any description of how a deck works.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| decklist | Yes | Card names in the deck | |
| commander | Yes | The commander — its keywords seed the mechanic detection | |
| response_format | No | Output verbosity: 'detailed' (default) or 'concise' | detailed |