Berta, Wise Extrapolator
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.
How Berta decks play in EDH
Berta, Wise Extrapolator is a Simic commander in blue and green costing 2GU, and its legendary creature - frog druid line shapes the whole deck around it. It makes tokens, so the deck wants ways to pump a wide board and to turn spare bodies into cards or damage. It cares about +1/+1 counters, so counter-doubling effects and creatures that grow on their own carry the deck. The cards below are the ones Berta, Wise Extrapolator decks actually play most often, grouped by the job they do.
Most-played cards
20 cards · about $41.74Play rates from EDHREC. Prices from Scryfall, refreshed daily.
Ramp (1)
Card draw (1)
Removal (1)
Creatures (10)
Synergy & payoffs (7)
Build the full 100
Grimoire generates a complete, Commander-legal Berta, Wise Extrapolator decklist with a written strategy, a full mana base and live prices — from the whole card pool, or only from cards you already own.
Start with BertaBerta deck questions
What colours can I use in a Berta, Wise Extrapolator deck?
Berta, Wise Extrapolator has a Simic colour identity, so every card in the deck must be blue and green or colourless. That includes mana symbols in rules text, not just casting cost.
What are the best cards for Berta, Wise Extrapolator?
The cards played most often in Berta, Wise Extrapolator decks include Beorn's Hospitality, Pia, Aether Ascetic, Necklace of Girion. The full list of staples above is grouped by the job each card does, so you can see the deck's skeleton rather than just a pile of names.
How much does a Berta, Wise Extrapolator deck cost?
The 20 most-played cards shown above come to roughly $41.74 at current market prices. A complete 100-card build costs more, and Grimoire can generate a budget version instead if you set a price ceiling.
Can I build a Berta, Wise Extrapolator deck from cards I already own?
Yes. Import your collection into Grimoire and choose "my cards" when you build. The generator will only use cards you actually own, and the Missing Cards page shows what you would need to buy to finish any list.