Just came to my mind that Widow with Jarnbjorn might be fun. It will cost you 6 resources and a card, but you'll be able to trigger Jarnbjorn three times from this event. And potentially attack normally and use jarnbjorn 4th time.
1+2+2+2+3+2+2+2 damage sounds nice. Probably not really doable right now (other than with insane setup, but still. 16 damage. And you can split it as you want.