Most played cards in Ponza:

3 Decks
Magma Jet
12 copies - 4 average
Molten Rain
12 copies - 4 average
Pillage
12 copies - 4 average
Bloodstained Mire
10 copies - 3.33 average
Firebolt
9 copies - 3 average
Slith Firewalker
8 copies - 2.67 average
Chrome Mox
8 copies - 2.67 average
Stone Rain
8 copies - 2.67 average
Wooded Foothills
7 copies - 2.33 average
Arc-Slogger
7 copies - 2.33 average
Grim Lavamancer
6 copies - 2 average
Pyroclasm
5 copies - 1.67 average
Lightning Helix
4 copies - 1.33 average
Kataki, War's Wage
4 copies - 1.33 average
Blistering Firecat
4 copies - 1.33 average
Sacred Foundry
4 copies - 1.33 average
4 copies - 1.33 average
Pithing Needle
4 copies - 1.33 average
Burning Wish
4 copies - 1.33 average
Seething Song
4 copies - 1.33 average