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Vendetta season • 1v1 Standard Card pool Live Standard Loading current rules Unsaved draft kept on this device Official rules ↗

Manual deck builder

Build card by card

Main Deck cards add to the registered 40.

Live Standard

Tactician's desk

Choose a deck to import or optimize

Start with the deck already on your table, open one from My Decks, or paste a list. Save it exactly as imported, or ask Riftbuilder to build an optional optimization plan.

01 / Deck source

Choose your starting point

The proving grounds

Competitive Decks

Browse attributed RiftMana tournament decks, inspect their exact construction, and compare them with a saved deck you deliberately choose.

Top 15 ranks the strongest published finishes available in RiftMana's per-Legend qualifier lists. Best by Legend shows each Legend's highest reported list; neither view invents missing standings.

Your comparison baseline

Choose one of My Decks

No deck is selected automatically. Your choice stays fixed while you browse; open any reference to review the full comparison on its deck profile.

Choose an explicitly saved deck to unlock the full comparison.

Evidence library

Deck references

0 decks

No evidence loaded yet

Attributed RiftMana tournament decks will appear here after their construction passes the selected rules.

Exact deck versus exact deck

Matchup Lab

Choose both constructions. Riftbuilder will compare their actual cards, game plans, interaction windows, Battlefield pressure, sideboards, and failure states before producing a critique-led report.

Structural stress plus strategic AI, never an invented win rate.

The draw-window test measures reproducible deck-internal checkpoints. Deep analysis separately interprets exact card text and sideboard plans. Neither layer resolves games, chooses winners, or publishes matchup percentages.

Analysis brief

Choose the confrontation

Current Standard rules
Your deck
Choose the exact deck you intend to play.
Opposing deck
Choose the exact opposing construction or a clearly labeled theorycraft baseline.

Select two legal decks to begin.

No matchup selected

Put two plans across the table

The completed report will map threats to answers, show phase-by-phase pressure, identify ahead/parity/behind weaknesses, and produce exact sideboard and construction recommendations.

Saved deck profile

Saved deck

Open a deck from My Decks to inspect its complete registered list.

Your arsenal

Find your answer

Deck builder

Choose a Legend. Build your way.

Your Legend sets the deck's Domain Identity. Choose one first, then decide how much of the build you want Riftbuilder to handle.

Your Legend

Choose a Legend

This single choice defines the domains and cards available to the deck.

Already have a list?

User-added local evidence

Add a competitive reference

Record where the list came from and the context supplied by its author. This reference stays in this browser unless you explicitly copy its deck into your vault.

Local evidence is not a verified tournament record. Riftbuilder labels it separately from RiftMana tournament evidence and keeps your notes attached.

Deck vault

My decks

Only decks and drafts you explicitly save appear here.

Take your decks with you

Sign in to keep a private deck vault available across devices.

Deck library

Save deck

Name this version and choose where it belongs.

Sign in to save this deck privately to your profile.

Deck organization

Move deck

Choose a new folder for this deck.

Deck organization

Create folder

Folders can sit at the top level or inside another folder.

Riftbuilder account

Your private deck vault

Keep decks private, synced, and available on every device you use.

Private Your lists belong to your account. Synced Continue building across devices. Resilient Device copies remain available offline.

Upgrade comparison

Review this swap

Compare both cards and the measured deck impact before changing the list.

Competitive deck intelligence

Craft around your Legend

Set the tournament objective. Riftbuilder will assemble legal candidates, test their structure, and show its reasoning before anything changes.

01 / Set the brief

Tell the crafter what winning means

New competitive deck
Selected Legend Choose a Legend first Its domains determine the legal card and Rune pool.
Selected card pool Live Standard • through Vendetta Validated against the current released card pool and sanctioned ban list.
Champion plan
Advanced controls and card constraints Optional

Rules remain deterministic. The crafter can recommend and explain; Riftbuilder's card catalog and validator decide what is legal.

Fast deck intake

Quick import

Paste a list to create a new deck immediately. Use the full Import workspace when you want legality review, optimization, and matchup planning first.

Recognized cards are imported as a new deck. Any unmatched lines are reported afterward without blocking the import.

Current deck

Export decklist

Copy or download a portable plain-text list grouped by Riftbound deck zone.

Live validation

Competition checklist

Every result names the rule or construction principle behind it.