Commander mana base guide
Toxrill, the Corrosive
Mana Base
Optimal land base for Toxrill, the Corrosive — 36–38 lands, black / blue color requirements, and budget builds from $50 to $500+.
black / blueA starting mana base for Toxrill, the Corrosive is a 36–38-land build tuned to its black / blue color identity and its control / value / stax game plan. Toxrill, the Corrosive is a control deck that trades early tempo for late-game inevitability, so its manabase leans toward a balanced mix of untapped fixing plus tapped lands that earn their slot with late-game upside. Choose a $50, $100, $250, or $500 budget below to generate a land list. This guide covers priority land picks, color-source math, and a free builder that generates the full list with TCGplayer checkout.
Karsten math
Color requirements
Frank Karsten's source counts for a 37-land deck, by color.
16
black sources
14
blue sources
Never skip
Priority lands for Toxrill, the Corrosive
Candidates to evaluate against your budget and the rest of your deck.
- 01Cabal Coffersramp
- 02Urborg, Tomb of Yawgmothcoffers_enabler
- 03Bojuka Boggraveyard_hate
- 04Reliquary Towercard_keep
Choose your tier
Toxrill, the Corrosive manabase by budget
How to build a Toxrill, the Corrosive land base at each popular price point. Click a tier to open the builder pre-loaded with the commander and budget.
- $5036–38 lands
Start with affordable color sources and basics; reserve utility slots for the commander’s plan.
Build at $50 → - $10036–38 lands
Prioritize dependable color access. Compare the suggested upgrades with the $50 build.
Build at $100 → - $25036–38 lands
Compare stronger fixing and useful land interactions. Availability and prices determine what fits.
Build at $250 → - $50036–38 lands
Explore functional upgrades first. Expensive printings are optional, and a larger budget does not guarantee a stronger deck.
Build at $500 →
Solver reasoning
Why these lands
- ◆We have a hand-tuned profile for Toxrill, the Corrosive.
- ◆Detected primary archetype: Control.
- ◆Secondary themes: Value/Midrange, Stax/Prison.
Method
How to build a mana base for Toxrill, the Corrosive
- 01Set land count to 36–38. Toxrill, the Corrosive is a control deck that trades early tempo for late-game inevitability and needs that count to reliably hit drops.
- 02Cover color requirements. For a 37-land black / blue build, 16 black, 14 blue sources — Frank Karsten's manabase math for a 100-card singleton.
- 03Slot priority lands first — Cabal Coffers, Urborg, Tomb of Yawgmoth, Bojuka Bog, Reliquary Tower. These earn their spot regardless of budget.
- 04Fill by budget: $50 = check + pain lands, $100 = add selective shocks, $250 = fetches, $500+ = original duals.
- 05Verify by running landfiller — the solver returns the exact list at your budget with a one-click TCGplayer cart.
Questions & Answers
FAQ
How many lands should a Toxrill, the Corrosive deck run?
A starting point for Toxrill, the Corrosive is 36–38 lands. As a control deck that trades early tempo for late-game inevitability, it leans toward a balanced mix of tapped and untapped lands, with tapped lands earning their slot through late-game upside. Adjust the count for your actual curve, ramp, draw, and playtesting. The builder supports 30–42 lands.
What is the best mana base for Toxrill, the Corrosive?
The best mana base for Toxrill, the Corrosive starts with these priority lands: Cabal Coffers, Urborg, Tomb of Yawgmoth, Bojuka Bog, Reliquary Tower. Fill the rest of the black / blue land base with untapped duals matching your budget — pain lands and check lands at $100, shocks + a few fetches at $250, and original duals at $500+. Always leave 1–2 utility land slots for the control plan.
What is the best land base for Toxrill, the Corrosive on a budget?
A budget Toxrill, the Corrosive land base can start with basic lands and affordable fixing that fits the black / blue identity. Evaluate utility lands against the colors your deck needs. Use the $50 budget preset to see which cards fit current prices. Casting consistency depends on your full deck; no fixed percentage is guaranteed.
How much does a Toxrill, the Corrosive manabase cost?
Choose a land budget from $20 upward. The builder recommends specific lands using available card prices and reports the total. Start with $50 or $100, then compare the land changes before spending more.
Does Toxrill, the Corrosive need fetch lands?
Toxrill, the Corrosive works fine without fetch lands. Compare fetches with affordable fixing and consider whether your deck has suitable fetch targets or land-entry synergies. Their value depends on the complete list, not a fixed budget threshold.
What color identity does Toxrill, the Corrosive have?
Toxrill, the Corrosive is a black / blue Commander (color identity: B, U). This determines the entire land base — every non-basic must fit inside this identity. For a 37-land deck, Toxrill, the Corrosive needs 16 black sources, 14 blue sources as starting source-count targets. Paste your decklist into the builder to account for its colored mana requirements.