Katarina is one of my favorite champions and I have been experimenting with her, even in most ridiculous situations (Teemo/Katarina :D)
Some of you guys might not know the Ephemeral interaction of Katarina so I wanted to share it here.
When you give Katarina, Mark of the Isles she won't die after she attacks and levels-up and comes back to your hand. Same with Oblivious Islander and Stirred Spirits.

So;
- You can use Oblivious Islander to reduce her cost to (2) for early upgrade posibility.
- You can use Stirred Spirits to make her more threatining with +2 Attack.
- You can use Mark of the Isles against frostbites or Removals (not against Vengeance) to save Katarina on your attack turn so she will be leveled-up. Works on your defend phase as well if she wouldn't die with the damage.
- One of the best is; You can use Shark Chariot with ephemeral Katarina to spawn Shark Chariots whenever you Rally !
I don't think you still don't know about Whirling Death/Single Combat - Katarina interactions but for new players and players who doesn't know these interactions yet, you can level-up Katarina with those combat tricks as well.
Some of the decks I was experimenting with this ephemeral interactions;
Katarina/Undying
Deck ID Not Found
Katarina/Hecarim
Deck ID Not Found
I hope it helps your deckbuilding and experimenting and enjoyement.
Leave a Comment