Choosing Your Party Members
Iconica is a strategy game. You do a fair of amount of planning and building of your collection. Some favor Offensive characters, while others favor Defensive characters.
Consequently, much of the strategy in Iconica is applied before you even play the game, specifically when you're choosing your party members.
As the rules point out, you and your opponent will take turns choosing characters to play. While this is happening, pay close attention to which characters your opponent is selecting. Choose your own characters based on which cards you believe will be effective against your opponents characters.
How does one know which characters will be effective? Get to know your characters. Once you know the characters, you can begin forming strategies for playing against them.
For instance, playing a Songsayer against an Assassin = not good for the Songsayer 9 times out of 10. However, the Songsayer does well against Defensive class characters.
So, get to know the characters you possess. If you don't own some of them, read their profiles online to find out more about them. After all, in life or in Iconica, knowledge is key.