Card sounds may differ from in-game as they get updated.
Charge - Can attack the turn it is played.
Summon - Does something when played
Warcry - Each time a unit or Relic Weapon with Warcry attacks, it grants a permanent bonus to the top-most unit or weapon in your deck. Even if it's a few cards down, you'll get to stack up the bonuses on it over multiple turns.
Taunt - This unit must be blocked.