First printed in Secrets of Strixhaven (2026)
All 3 prints
Log in to choose your favorite print: the site shows it in your decks, in the search and in the simulator.
-
Secrets of Strixhaven Promos (PSOS) #175p, 2026
-
Secrets of Strixhaven (SOS) #175, 2026
-
Secrets of Strixhaven (SOS) #346, 2026
Berta, Wise Extrapolator 
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.
, 
: Create a 0/0 green and blue Fractal creature token and put X +1/+1 counters on it.
MTGO price: 0.006 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
In the last 30 days 0.0% of Commander decks played it (1 of 6150). Most played in Zimone, Infinite Analyst.
In Limited on MTG Arena
Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).
| Set | GIH WR | vs set | IWD | Games |
|---|---|---|---|---|
| Secrets of Strixhaven (SOS), Premier Draft | 56.0% | +0.6 | +5.7 | 11071 |
| Secrets of Strixhaven (SOS), Sealed | 51.7% | -4.1 | -2.5 | 1006 |
- GIH WR
- win rate of the games in which the card was in the opening hand or drawn
- vs set
- points above or below the average win rate of all decks in the set
- IWD
- improvement when drawn: GIH WR minus the win rate when the card stayed in the library
- Games
- games in which the card was seen
Combos
227 combos from Commander Spellbook, the most popular first.
- Infinite creature ETB, Infinite creature LTB…: Berta, Wise Extrapolator + Intruder Alarm
- Infinite creature LTB, Infinite death triggers…: Berta, Wise Extrapolator + Intruder Alarm + Ivy Lane Denizen
- Infinite +1/+1 counters on a creature, Infinite creature ETB…: Berta, Wise Extrapolator + Shrieking Drake + Three Tree Scribe
- Infinite card draw for opponents, Infinite draw triggers for each opponent…: Berta, Wise Extrapolator + Ms. Bumbleflower + Shrieking Drake
- Infinite creature ETB, Infinite creature LTB…: Berta, Wise Extrapolator + Intruder Alarm + Xavier Sal, Infested Captain
- Infinite artifact ETB, Infinite artifact LTB…: Animation Module + Berta, Wise Extrapolator + Extruder
- Infinite artifact ETB, Infinite +1/+1 counters on a creature…: Animation Module + Berta, Wise Extrapolator + Decoction Module + Fabrication Module
- Infinite artifact ETB, Infinite artifact LTB…: Animation Module + Berta, Wise Extrapolator + Donatello, the Brains + Mutagen Man, Living Ooze
- Infinite creature LTB, Infinite death triggers…: Berta, Wise Extrapolator + Cathars' Crusade + Intruder Alarm
- Infinite +1/+1 counters on a creature: Assassin Den + Berta, Wise Extrapolator + Biomancer's Familiar + Training Grounds
Legality
Constructed
- Standard Legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Legal
- Historic Legal
- Timeless Legal
- Alchemy Legal
- Penny Dreadful Legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Not legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Legal
- Competitive Brawl Legal