If you want to show them separately, have the keyword values appear in a different color. That way, if you play an Uncommon Beast (Griffin, for example) with the keyword effect, the damage to the opponent's wall could be shown as -14 -5 where the 14 is the standard white and the 5 a beige or yellow hue. We'd also need a color that can be seen against the resource background colors for stock change effects like from Aqua or Mage.
If all you want is an indicator that a keyword effect occurred, like Illusion where no numbers actually change, have the keyword as it appears on the played card show up in a different color so it stands out. This could be done for every keyword that triggers.