OpsKT
Explorer
I've taken to hand-writing power cards (on the blanks the the old CB will create). I leave spaces to fill in the numerical information that will change, such as attack and damage. So my card will look something like...
Tide of Iron
+___ vs. AC,
1d10+___ damage
& push __ squares
... and I'll fill in the relevant numbers based on level, equipment, feats, etc.
Eventually the card gets beat to heck and I make a new one, but at least this way I'm not burning printer ink every time I level up or find a new magic item.
This too is a good idea, if you want the format of the cards.
Honestly, rather than printing cards with the power on them already, I don't know why wizards didn't sell packs of blanks (4 at will, 4 encounter, 4 daily, 4 utility) that you just filled in yourself from the start.