What you need is a strategy.
teams with just a Level 3 Legendary or Level 5 Epic Summoners. If you know all the cogs in the machine, there is a good chance you will be able to be the David that beat Goliath.
!PIZZAI cannot stress this enough! There is very little pay to win elements in @splinterlands I have beaten Max Level
Sometimes luck is also needed to win the battle.
RNG is RNG. It cuts both ways......but only for Melee & Ranged damage. Thats why Magic based decks are so popular as you never miss unless its some abilities.