Welcome to Splinterlands! I hope you'll have a lot of fun here. And no worries, you'll learn quickly :-D Looking at your first game, one remark:
Melee attack only works in first position, or with abilities like Sneak or Opportunity.
Range attack only works from afar, never in first position.
Magic attack works from everywhere.
Good luck gaming!
RE: Chaos Pack Opening, and 1st Game