For a long time, it wasnt really possible to build a good Exava deck because there werent enough cards with her identity that did stuff with counters
Check the forum and the pinned messages (the pin icon at the top of the #optcgsim-help channel) for what version number you should get just in case the latest has major bugs
If they cant, you draw a card instead, which makes it a win either way
This was great if you knew what the top card of your library was, via a Sylvan Library for example, but depending on what your ante card was, it didnt matter
Power Matters Triggers Over Time This also debuted with Garruk's theme in a Core Set with Garruk's Packleader that costs five for a 4/4 uncommon and then as stuff with a 3 or better power arrives, you draw a card and Garruk usually makes 3/3 Beasts to trigger
Atomic Microsizer Rating: 3/10 Im not quite getting the design here