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Berta, Wise Extrapolator
SOS · Secrets of Strixhaven #346 · Rare · released 2026-04-24
{2}{G}{U}
Legendary Creature — Frog Druid
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.
Berta, Wise Extrapolator is a rare green-blue creature from Secrets of Strixhaven (2026). It has been printed 3 times across 2 sets. Recent market prices range from $0.29 to $1.30 depending on printing and finish. It is legal in Standard, Pioneer, Modern, Legacy, Vintage, Commander, Oathbreaker, Historic, Brawl and Penny Dreadful.
USD$0.54
USD Foil$0.61
Format legality
Where you can play Berta, Wise Extrapolator in sanctioned and popular formats.
StandardLegal
PioneerLegal
ModernLegal
LegacyLegal
VintageLegal
CommanderLegal
PauperNot legal
OathbreakerLegal
HistoricLegal
BrawlLegal
Penny DreadfulLegal
All printings (3)
Prices range from $0.29 to $1.30 across finishes. Cheapest printing: Secrets of Strixhaven at $0.29.
| Set | No. | Rarity | Price | Foil |
|---|---|---|---|---|
| Secrets of Strixhaven Promos | 175p | Rare | $0.61 | $1.30 |
| Secrets of Strixhaven This page | 346 | Rare | $0.53 | $0.63 |
| Secrets of Strixhaven | 175 | Rare | $0.29 | $0.36 |
More from Secrets of Strixhaven
Rulings
Official rulings from Wizards of the Coast (6).
- 2026-03-20An increment ability will only trigger if the permanent it's on is a creature. Similarly, if the permanent is no longer a creature when its increment ability resolves, the ability won't do anything.
- 2026-03-20The increment ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack.
- 2026-03-20If increment triggers, the comparison will happen again when the ability tries to resolve. If the amount of mana spent to cast that spell isn't greater than either of that creature's stats anymore, the ability will do nothing.
- 2026-03-20When comparing the mana spent to the creature's stats as the increment ability resolves, it's possible that the stat that is less than the mana spent changes from power to toughness or vice versa. For example, say you control a 1/3 creature with increment and you pay two mana to cast a spell. Since the amount of mana you spent is greater than the creature's power, increment will trigger. While the increment ability is on the stack, an effect gives the creature with increment +2/-2, making it a 3/1. When the increment ability resolves, the creature will still get a +1/+1 counter since the amount of mana you spent is greater than that creature's toughness.
- 2026-03-20Whenever you cast a spell, check the amount of mana you spent to cast it against the power and toughness of the creature with increment. If the amount of mana you spent isn't greater than either of that creature's stats, increment won't trigger at all.
- 2026-03-20Berta's second ability isn't a mana ability. It uses the stack and can be responded to.
Frequently asked questions
Is Berta, Wise Extrapolator legal in Commander?
Yes — Berta, Wise Extrapolator is legal in Commander (EDH).
What formats is Berta, Wise Extrapolator legal in?
Berta, Wise Extrapolator is legal in Standard, Pioneer, Modern, Legacy, Vintage, Commander, Oathbreaker, Historic, Brawl and Penny Dreadful.
How many times has Berta, Wise Extrapolator been printed?
Berta, Wise Extrapolator has been printed 3 times across 2 sets.
What is the cheapest printing of Berta, Wise Extrapolator?
The cheapest printing is Secrets of Strixhaven (#175) at about $0.29.
Who illustrated Berta, Wise Extrapolator?
This printing of Berta, Wise Extrapolator was illustrated by Tuan Duong Chu.