I've been messing around with the 'return this action card to your hand' idea that lots of people have tried, and I ended up creating this card:
Keep
Action/Reaction
Cost: 5
+1 Card
+3 Actions
When you play an Action, you may reveal and discard this card from your hand. If you do put the played Action card into your hand.
Keep is pretty much any card you want, as long as you've already played one. It would be horrible to implement on Iso,with the little choice of 'to put in hand' or 'not' coming up whenever you play an Action, but IRL, it shouldnt be too bad.
The Vanilla bonus is one I've been trying to put on a card, and it fit perfectly here.
Thoughts?