Arcane Foundry › Commanders › Berta, Wise Extrapolator
Berta, Wise Extrapolator
Legendary Creature — Frog Druid · {2}{G}{U} · Green/Blue commander
Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
Whenever one or more +1/+1 counters are put on Berta, add one mana of any color.
{X}, {T}: Create a 0/0 green and blue Fractal creature token and put X +1/+1 counters on it.
Build a Berta, Wise Extrapolator deck →
What Berta, Wise Extrapolator actually does
Read off the card by the same engine the Forge and Analyzer use — this is the mechanical classification, not a summary.
- Triggered ability · countersWhenever one or more +1/+1 counters are put on Berta, add one mana of any color.
- Activated ability{X}, {T}: Create a 0/0 green and blue Fractal creature token and put X +1/+1 counters on it.
- Keyword · incrementincrement
What a Berta, Wise Extrapolator deck needs
Plays as counters. What the commander asks of the other 99 — read from the card and checked by hand.
- +1/+1 counter producers and payoffs (its text places or reads +1/+1 counters)
- token payoffs — anthems, sacrifice outlets and go-wide finishers (it makes tokens on repeat)
- haste and untap effects that reach the commander (a tap ability is unusable the turn it lands)
The Berta, Wise Extrapolator deck plan
The roles the Forge fills for this commander, and how many cards of each.
- 8× Put haste on the commander the turn it resolves — a tap ability is unusable otherwise
- 5× Untap the commander so the tap ability is an engine, not a one-shot
- 14× Put +1/+1 counters on creatures you control, or multiply the ones already there
- 12× Make creature tokens — a static anthem or a go-wide commander needs a board to be wide
- 4× A team pump that actually pumps tokens
- 5× Actually remove one problem permanent — preventing its damage is not removing it
- 9× Find the exact card the plan needs
- 2× Answer a spell or ability before it resolves
- 1× Answer a whole board at once
Best cards for Berta, Wise Extrapolator
Ranked by an engine that reads what each card does — its real cost, its delay and how reliably it works — rather than counting how often other people play it.
Put haste on the commander the turn it resolves — a tap ability is unusable otherwise
- Thousand-Year Elixir3 mana
- Lightning Greaves2 mana
- Swiftfoot Boots2 mana
- Runadi, Behemoth Caller3 mana
- Akroma's Memorial7 mana
- Ulvenwald Oddity // Ulvenwald Behemoth4 mana
- Lavaspur Boots1 mana
- Shang-Chi, Master of Kung Fu2 mana
Untap the commander so the tap ability is an engine, not a one-shot
- Bear Umbra4 mana
- Freed from the Real3 mana
- Pemmin's Aura3 mana
- Sting, the Glinting Dagger2 mana
- Umbral Mantle3 mana
- Unstoppable Plan3 mana
- Genji Glove5 mana
- Copperhorn Scout1 mana
Put +1/+1 counters on creatures you control, or multiply the ones already there
- Branching Evolution3 mana
- Hardened Scales1 mana
- Ozolith, the Shattered Spire2 mana
- Kami of Whispered Hopes3 mana
- Benevolent Hydra2 mana
- Michelangelo, Weirdness to 112 mana
- The Earth Crystal4 mana
- High Score3 mana
Make creature tokens — a static anthem or a go-wide commander needs a board to be wide
- Kozilek's Unsealing3 mana
- Replicating Ring3 mana
- Esika's Chariot4 mana
- Omarthis, Ghostfire Initiate0 mana
- Wrenn and Seven5 mana
- Andúril, Flame of the West3 mana
- Rampant Frogantua3 mana
- Field of the Dead0 mana
A team pump that actually pumps tokens
- Finale of Devastation2 mana
- Beastmaster Ascension3 mana
- Heraldic Banner3 mana
- Assault Formation2 mana
- Jolrael, Mwonvuli Recluse2 mana
- Sylvan Anthem2 mana
- Weaver of Harmony2 mana
- Goreclaw, Terror of Qal Sisma4 mana
Actually remove one problem permanent — preventing its damage is not removing it
- Reality Shift2 mana
- Pongify1 mana
- Rapid Hybridization1 mana
- Resculpt2 mana
- Beast Within3 mana
- Nature's Claim1 mana
- Emerald Charm1 mana
- Naturalize2 mana
Find the exact card the plan needs
- Green Sun's Zenith1 mana
- Nature's Rhythm2 mana
- Neoform2 mana
- Worldly Tutor1 mana
- Reshape2 mana
- March of Burgeoning Life1 mana
- Mask of the Mimic1 mana
- Long-Term Plans3 mana
Answer a spell or ability before it resolves
- Mindbreak Trap4 mana
- Fierce Guardianship3 mana
- Force of Negation3 mana
- Force of Will5 mana
- Flare of Denial3 mana
- Pact of Negation0 mana
- An Offer You Can't Refuse1 mana
- Arcane Denial2 mana
Answer a whole board at once
- Desynchronization4 mana
- Wave Goodbye4 mana
- Whelming Wave4 mana
- Consuming Tide4 mana
- Oversimplify5 mana
- Selective Obliteration5 mana
- Needle Storm3 mana
- Evacuation5 mana
Combos with Berta, Wise Extrapolator
Known combos from Commander Spellbook that Berta, Wise Extrapolator is a piece of, and how many decks list them.
- Berta, Wise Extrapolator + Intruder Alarm1,783 decks
- Berta, Wise Extrapolator + Intruder Alarm + Ivy Lane Denizen536 decks
- Berta, Wise Extrapolator + Shrieking Drake + Three Tree Scribe385 decks
- Berta, Wise Extrapolator + Ms. Bumbleflower + Shrieking Drake264 decks
- Berta, Wise Extrapolator + Intruder Alarm + Xavier Sal, Infested Captain54 decks
- Berta, Wise Extrapolator + Animation Module + Extruder28 decks
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