メインコンテンツへ 
Overview
| Field | Value |
|---|---|
| Name (EN) | Flash Card |
| Name (JP) | フラッシュカード |
| Rarity | Uncommon |
| Cost | $5 |
| Effect | Gains +2 Mult permanently per shop reroll (starts at +0 Mult) |
| Unlock | Available from the start (no unlock required) |
| Trigger Type | On shop reroll (permanent growth) |
| Overall Tier | A (A+ in reroll builds) |
Rating & Analysis
Flash Card grants +2 Mult permanently per shop reroll (starts at 0). At Uncommon $5, 20 rerolls = +40 Mult, 50 rerolls = +100 Mult — a long-term scaling axis driven by economy.
The dream pairing is the reroll axis: Chaos the Clown (1 free reroll per shop) + Flash Card = ~24 free rerolls per run = +48 Mult guaranteed. Buffoon / Reroll Surplus vouchers cut reroll cost; Golden Joker / Yellow Deck pay for the rerolls.
Blueprint / Brainstorm copy with independent counter = double growth speed. Tier lists rate A overall, A+ in reroll-axis builds. $5 for permanent +Mult scaling is theft — buy early.
Deck Ratings
| Deck | Rating | Notes |
|---|---|---|
| Yellow | A+ | $10 start enables reroll axis early |
| Anaglyph | A | Double Tag duplicates Enhancement Tags |
| Red / Blue | A | Stable on standard decks |
| Plasma | A | Chip averaging amplifies +Mult |
| Black | A | +1 slot — reroll axis expansion |
Good Joker Synergies
| Joker | Why |
|---|---|
| Chaos the Clown | 1 free reroll per shop — Flash Card combo perfect. |
| Golden Joker | $4/round — funds rerolls. |
| Bull / Bootstraps | $5 held → +Mult — money-to-damage. |
| Seed Money / Money Tree | Interest cap up — reroll funding. |
| Blueprint / Brainstorm | Independent counter — doubles growth speed. |
| Fortune Teller | +Mult per Tarot — Tarot-axis parallel. |
Recommended Builds
| Build | Core Loop | Target Consumables |
|---|---|---|
| Reroll axis | Flash Card + Chaos the Clown + Golden | Buffoon Voucher |
| Economy + damage | Flash Card + Bull / Bootstraps + Golden | Strong tags |
| Long-term scaling | Flash Card + Lucky Cat + Supernova | Enhancement Tarots |
| Blueprint stacking | Flash Card + Blueprint = double growth | Black Hole / The Soul |
Tips & Usage
- Buy early to maximize lifetime +Mult accumulation.
- Chaos the Clown combo gives effective "free +2 Mult/shop".
- Buffoon / Reroll Surplus vouchers cut reroll costs.
- Blueprint to its right gives independent counter — doubled growth.
- Pair with economy-axis Jokers to fund rerolls.
Caveats
- Starts at 0 — slow ramp early-game.
- Reroll-dependent — value drops once build is locked.
- Avoid Perishable — losing growth-momentum is critical.
- Eternal locks the build path but persistent growth is fine.
- Chaos the Clown's free reroll counts toward growth (verify in current patch).