High-performance web-based Build Advisor and Strategy Tool for Slay the Spire 2. Track deck, get real-time card pick advice, and visualize archetype build paths across all 5 playable characters.

• Real-time Card Scoring — Context-aware verdict for every card reward based on current deck, act, ascension, and boss.
• Six Axes Analysis — Deck balance across Attack, Defense, Scaling, Consistency, Efficiency, and Synergy.
• Crisis Detection — Flags critical gaps (e.g. no block by mid-Act 1) with surge scoring toward survival.
• Synergy Engine — 151 synergy pairs across Ironclad, Silent, Defect, Necrobinder, and Regent.
• Archetype Classification — Auto-detects active archetypes (poison, exhaust, shiv, doom, star, etc.).
• Adaptive Phase Scaling — Scoring evolves across 4 phases: Ascent, Act 2 Elite Prep, Heart Push, and Beyond.
• Boss Counter-Play — Strategy panel with attack patterns, kill order, and deck matchup analysis for every boss and elite.
• Engine Tracker — Build status panel showing committed/building archetypes with progress bars.
• Auto-Save & Persistence — Session auto-saves to localStorage; export/import JSON; named loadouts (up to 20).
• Browse All Modal — Manual card search/add for theorycrafting.
• Responsive 3-Column Layout — Deck list, stat chips, and reward advisor panels.

Ironclad, Silent, Defect, Necrobinder, Regent — 583 unique cards (1,156 counting upgrades) across all characters and colorless pool.

Engine calculates real-time card_score using current deck state:

1. Six Axes Baseline — Deck stats across 6 dimensions; gaps produce crisis urgency scores.
2. Archetype & Phase Weighting — Archetype detection combined with act-phase enforcement.
3. Synergy Modeling — 200+ card-to-card pairs scored with bond types: Enable, Amplify, Finisher, Loop.
4. Boss Adaptation — Bonus/suppression weights based on selected boss and region.
5. Survival Dominance — Early acts prioritize survival; luxury scaling suppressed until baseline met.

data/     — Static game data (9 files): per-character cards, builds, constants, synergy pairs (583 base cards, 151 synergy pairs)
core/     — Logic engine (6 files): state, deck stats, build analysis, reward advisor, engine tracker, storage
ui/       — View layer (6 files): deck view, picker view, result view, header controls, modals, helpers
assets/   — 32 PNG icons for status effects and character energy
scripts/  — Tooling (4 files): card type classifier, data generators, balance test scenarios

~16,300 lines across 26 source files.

Tested in modern browsers (Chrome, Firefox, Edge). Requires ES6 support.

Bug reports, feedback, and pull requests welcome. Open an issue for incorrect interactions or new synergy suggestions.

Built for the StS2 community. Logic based on meta-analysis and community research.