I think that your card pile should be called something other than "Vault". Vault is not an "official" Elements term. It's mostly used in War, and shouldn't be used in other events. It would be better if there was some kind of unique name for "Vault" in this event, or maybe simply call them "Cards".
To clarify, this is not really about which event has a "copyright" over which word. This is about making events unique by using unique terms, while at the same time decreasing confusion.
Originally, I used the term "Vault" as I thought it would make it easier to understand what the dog's Health is for, even though it was disturbing to use the same term as the war uses.
Thanks for pointing this out and giving the opportunity to change it into something more fitting.
The first thing that popped into my mind was "Stash", the second one was "Den". Den would be a good choice, if there weren't that little logical fail: "If your dog gets damaged, why does its den crumble?"
In the end, I decided to simply call it "the dog's Health".
- Replaced "Vault" with "Hp" and reworded some stuff.
I have a second suggestion. To give the event a bit more personality, we could use a character sheet that looks something like this:
Awesome! Great idea, I love it.
The dog picture can also be made from any dog-dressup game, or painted by the player him/herself.