Most played cards in Eureka:

1 Decks
Birds of Paradise
4 copies - 4 average
Triskelion
4 copies - 4 average
Tropical Island
4 copies - 4 average
Eureka
4 copies - 4 average
City of Brass
4 copies - 4 average
Shivan Dragon
3 copies - 3 average
Taiga
3 copies - 3 average
Bayou
3 copies - 3 average
Gloom
3 copies - 3 average
Mahamoti Djinn
3 copies - 3 average
Shatter
3 copies - 3 average
Red Elemental Blast
3 copies - 3 average
Sylvan Library
3 copies - 3 average
Concordant Crossroads
3 copies - 3 average
City in a Bottle
2 copies - 2 average
Earthquake
2 copies - 2 average
Blue Elemental Blast
2 copies - 2 average
Llanowar Elves
2 copies - 2 average
Regrowth
1 copies - 1 average
Sol Ring
1 copies - 1 average