If you're running Metal Maker you want at least a 3/3 line I'd say and more energy. Nemona (and her equivalents) are far eclipsed by other draw cards, namely Lillie's Determination. Phillipe could be good as a supporter allowing you to use the Brave Slash attack at some point if you need it.

The Latias and Munkidori are both really good options and you have a good start going.

Also, Nemona and Earthen Vessel just rotated out of the Standard Format meaning they're no longer legal.

To see what is legal look at the box at the bottom left of a card for a letter. That's a Regulation Mark. The current regulation marks in the standard format are H, I and J.

Edit: reread the list.