kind of nice thing to have, just suprised they keep upgrading it

to everyone, really. 

to everyone, really. 

to everyone, really. 

ok... but why should I use it when any deck tracker does it automatically?

doesn't work, when the enemy (mostly mage) created several new spells. However still helpful in most cases

I'm new. What's the purpose of this?

It's so you can count whether the enemy already used both secrets he has in a deck (so you know another secret won't be this one)

Thanks for the explanation.. Ok. I can try that for the next battle

Will this have a separate tab for arena after rotation? Arena is going to have a different set of cards than standard, so theoretically that means a different set of secrets. 

No, because the point of this is to know when they've used both of that secret, but in arena they can have more than 2 of the same card

At first I was like what the heck is this but now I get it and it could be a valuable tool. So if an opposing mage or hunter via rhok delar were to create a random spell, could a secret be created? What I am getting at is a third secret that is the same as 2 others that have already been played would pretty much break this tracker, would it not?

Secret Plan already breaks this easily. And there's more cards that can duplicate secrets. But you can still guess what they did based on what traps are available for the enemy's class. Take Secret Hunter in Standard for example: It generates a random secret from Professor Putricide. What's your move?

1) Play a minion? Make sure it has a good deathrattle or has high HP to survive a Snipe. If it's not hit by Snipe then...

2) Attack a minion? Freezing Trap, Snake Trap, or Venomstrike Trap. Use something disposable and weak. If it's not those traps then...

3) Smorc face? Explosive Trap, Misdirection, or Wandering Monster. (Usually Wandering) Same as above. Still didn't trigger?

4) It's Rat Trap. Make your 3rd card count.

Congrats, now you know what to do with whatever Standard Hunter trap is thrown your way.

-Signed, Secret Hunter.

Noice. Now I feel compelled to do the same for Paladin and Mage, wild versions though, more randomness to look out for. Gonna add some secret trivia to keep in mind too.

• Only one Secret can take effect at a time, and multiple activated Secrets will always take effect in the order in which they were played. For example, a minion attacking a hunter who has played Misdirection followed by Freezing Trap will be Misdirected before then being returned to the controlling player's hand. This can make the order in which Secrets are played extremely significant.

• If a Secret removes the specific target for another Secret which was already triggered, the second Secret will not take effect, since it now lacks a target. For example, if Freezing Trap removes the minion which would have been the target of Misdirection, the Misdirection will not trigger, since it no longer has a target.
  • Note that this rule only applies for Secrets which require specific targets; Secrets such as Explosive Trap and Snake Trap do not require targets, and will always take effect once triggered, even if the original trigger minion has been removed from play.

Mage

1) Play a minion? Mirror Entity is the most common one. Either a low cost minion to waste the secret, a beneficial one to receive its deathrattle(Rattling Rascal, Zombie Chow, Ancient Watcher etc.), and silence your own or kill the weak summon. Battlecries trigger first, though, and they won't get a copy if their board is full.Otherwise it's Explosive Runes or Potion of Polymorph, in which case a sacrifical minion(as above), the former perfect for triggering deathrattles or if the minion has divine shield. Lastly, [card][Frozen Clone/card] could pop, 

2) Play a Spell? (Or first, or if minion doesn't trigger) Counterspell is common enough, and wastes your spell, so a coin or other cheap spell to trigger it. Mana Bind, which is great when you have those niche spells they can't do anything with. Otherwise Spellbender, so be careful when buffing minions.

3) Attack Kill a Minion? Duplicate, Double legendaries in hand! The best. Or, keep an eye out for high cost minions for Effigy

4) Face. Vaporize, leaving high cost minions alive is a hint, otherwise sacrifice one, or it will trigger Ice Barrier, for that extra bit of survival. Then lastly, Ice Block , which is a great card to keep up for secret synergy, and the usual care when playing around it when they're low.

Paladin

1) Play a minion? Repentance, so be careful on high HP minions, otherwise Sacred Trial might trigger if you have 3 or more minions. Hidden Wisdom throughout, so keep an eye on number of cards used.

2) Play a Spell? Now, nothing will trigger off it, but killing a minion might trigger Avenge, so aoe to board clear helps, otherwise deal with it. Getaway Kodo is another option, so a morphed minion is screwed. Redemption is the last of this trilogy, all 3 in play can trigger off the same minion dying. Otherwise the latest secret, and only secret of Shadows, Never Surrender!, perfect to screw with AOEs. 

3) Attack a Minion? Autodefense Matrix could trigger, IF the minion doesn't have divine shield already, otherwise if Noble Sacrifice triggers, or triggers as well, it will give the defender divine shield IF the first minion already has divine shield. Otherwise there's Redemption to keep in mind again. 

4) Eye for an Eye, or defender again if you haven't attacked yet.

5) None of the above Competitive Spirit, great to confuse your opponent testing the other triggers, enjoy it while it lasts, or suffer the mystery.

IDK how to use this

What is this? 

The standard version just makes me miss Cat Trick.  

why would you need the calculator to do that?

I never knew this existed until now. And here ive been using a pen & paper like a peasant.