The 11 Pokmon card types are: Grass type Fire type Fighting type Dragon type Fairy type Darkness type Colorless type Psychic type Lightning type Water type If you want to learn more about those, we have a whole guide to Pokmon card types you should read after this one
If Kraum and Thrasios are your commanders, your deck may contain cards with green, blue, and/or red in their color identity, but not cards with white or black
Any damage done to a character is persistent so it may be that you need to challenge a high Willpower character multiple times over two or more turns before you can banish them
Etali, Primal Conqueror / Etali, Primal Sickness Etali, Primal Conqueror is a massive 7/7 with trample that gives you a bunch of free nonland cards to cast off the top of your opponents libraries
This can be a really useful trick in conjunction with nonlegendary copies
Also, this card has only ever been printed in M14 nearly a decade ago