Players must use their creatures to battle against their opponent and knock out all of their Pokmon to win
Defensive phase-outs like Teferis Protection also allow creatures to dodge boardwipes, edicts and other non-targeted removal, where many flicker effects simply return them to the battlefield in time to perish by the next spell you had been responding to on the stack
The problem is it is just a bit too late and expensive
Once you get through the instructional guides, you can find many tips and reminders in them that help you in all subsequent gaming battles.
It doesn't help that Kaheera is a Cat but not an Elemental, but I'm guessing that there will be some combination of an Elemental framework of Leafkin Druid, Risen Reef, and Omnath, Locus of the Roil along with Kaheera, Questing Beast, and a few other choice creatures