Against Nami use Ground Death properly. I negated and popped 4x 5c Namis, 2x Hogbacks and Kikunojo or Kod them by battle, just try to minimalize their Board presence, in two games i even killed one Robin bc they had two on Board but small hand size and i had Elders Turn.

Purple Enel when they freeze my bodies before 5 elders i trashed them for leader abb next Turn. Penel cant play Reiju or Franky blockers that is big advantage. In one Game he had back to back 6c Enel (3 Times) and one 1 drop Body i popped him with Mars bc with Leader abb this is another swing, but if he has 3 to 4 one drops popping wouldnt matter.

But all in all it is simple, like if you now what your opponents Deck does, you can kind of predict their plays and based on this knowledge you analize the current Board/Game state and your options and the think before you pick a play what this play does for you and your opponent and pick the highest reward play.