🃏 Deck Building Guide
Deck Building Guide
Monster Train 2 rewards decks that do one thing extremely well over decks that do five things moderately. Aim for a lean 14–18 card deck that reliably draws your combo pieces every turn.
1. The Three Core Principles
Principle 1: Lock in One Theme
Use your Ring 1–2 Common card offers to decide your core strategy. Build Uncommons and Rares on top of the direction your Commons define.
| Archetype | Key Cards | Recommended Clans |
|---|---|---|
| Spike Reflect | Spike-grant spells + high-HP walls | Awoken + Stygian |
| Burnout Aggro | Rage spells + execute spells | Hellhorned + Melting Remnant |
| Reanimate Loop | Reanimate + cheap units | Lazarus League + Underlegion |
| Magic Scaling | Conduit + Spellcharge | Stygian Guard + Luna Coven |
| Equipment Stack | Equipment doublers + durable unit | Lazarus League + Banished |
Principle 2: Few Cards, High Quality
The ideal deck is 14–18 cards. More cards dilute your combo draws.
- Sell starter cards: Prioritize removing weak starters in Rings 1–2
- Avoid duplicate roles: Rather than three healing options, run the best one × 2
- More than 7 spells is risky: Too many spells leaves floors undefended
Principle 3: Build Backwards from the Boss
For every card offer, ask: "Can this beat Velvet Queen?" Cards that don't function in the endgame should be deprioritized no matter how good they look early.
2. Ring-by-Ring Blueprint
Rings 1–2: Foundation (Commons matter most)
- Use Common offers to decide your mechanical axis
- Sell weak starters immediately — even in Ring 1
- Secure 2–3 low-cost units for early floor stability
Rings 3–4: Reinforce (Uncommons enter)
- Only take Uncommons that directly support your axis
- Hit enhancement shops and upgrade your carry unit first
- If deck exceeds 18 cards, start culling
Rings 5–6: Patch Weaknesses (Rares + Artifacts)
- Identify gaps: no AoE? No healing? Too much Ember cost?
- Off-theme cards are acceptable if they cover a critical weakness
- Keep selling cards that have become redundant
Rings 7–8: Final Polish
- Cull down to maximize consistency before the final boss
- Pre-boss shop: upgrade any unenhanced key cards
3. Enhancement Selection
Enhancements give permanent stat boosts to units and spells. Concentrate early investment on a single carry unit.
| Enhancement | Effect | Best Target |
|---|---|---|
| Strengthstone | +14 Attack | High-attack ability units |
| Frenzystone | Grants Multistrike 1 | Any attack-scaling unit |
| Shieldstone | Grants Damage Shield | Champion / carry units |
| Dualstone | Doubles applied buffs | Buff-stacking units |
| Soulstone | Cost –1 | High-cost key spells |
Frenzystone is top-tier: Multistrike triggers ability effects on each hit — attaching Frenzystone to an ability unit effectively more than doubles its output.
Enhancement Priority
- Champion upgrade — always first
- One carry unit to completion — Frenzystone + Strengthstone package
- 1–2 key spells — Soulstone for cost reduction or Quickstone for cycling
- Everything else can wait
4. Deck Culling in Practice
Culling is an investment in consistency, not just removing bad cards.
What to Cut
- Starter cards (the weak cost-1 cards you start with)
- Role-duplicates (once you have the best version, sell second place)
- High-cost dead weight (Ember 4+ cards with limited use cases)
- Cards that never fired (if it never comboed by Ring 4, cut it)
When to Cull
| Timing | Action |
|---|---|
| After Ring 1 | Remove 1–2 of the weakest starters immediately |
| Ring 3 shop | Cut off-theme cards once your axis is confirmed |
| Ring 5+ | Keep culling until 14–16 cards |
5. Floor Layout and Deck Synergy
Deck construction and floor layout are a package deal.
| Floor Setup | Deck Composition |
|---|---|
| 2-floor focus (recommended) | High single-target spells + durable units |
| 3-floor spread | AoE spells + many cheap units |
| 1-floor all-in (endgame) | Solo champion carry + large buff stack |
At high Covenant, 2-floor focus is the most reliable. Spreading forces across 3 floors creates thin defenses that are easily breached.
6. Common Mistakes and Fixes
| Mistake | Cause | Fix |
|---|---|---|
| Deck exceeds 25 cards | Adding every good-looking card | Cut anything off-theme |
| Too many spells | Stacking powerful spells | Keep unit:spell ratio 6:4–5:5 |
| Champion never upgraded | Gold spent on drafts instead | Always buy Ring 1 champion upgrade |
| Weaknesses ignored | Over-stacking main strategy | Check "what beats me" at Rings 5–6 |
Summary
- Decide your axis from Ring 1–2 Commons
- Slim to 14–18 cards by selling starters
- Concentrate enhancements on one carry unit
- Patch weaknesses by reverse-engineering the boss fight
- Final cull at Rings 7–8
Following these five steps consistently will raise your win rate across all clans and Covenant levels.