See Challenge # 143.

I'm terrible at thinking of ideas; so I mashed - and got Megrim as a starting point.

"Punish discard", sort of the opposite of madness? Keyword it to Eidetic.

And to really demonstrate it; let's make it an enabler.

Interesting how multiples would work well together.

True. Personally, I wouldn't mind seeing Eidetic continue to walk down this road:

Brimmer Buff
­
Sorcery
Target creature gets +4/+4 until end of turn.
Eidetic -- You may cast this for , with flash, whenever a creature's power is increased.

Oh; I was assuming they were always "whenever a player discards a card"; and yes, this particular one is intended to be a way to kick the chain off so you could throw multiple other cards at it.

Interesting idea for other "I like that; do more of that" cards - though it needs a different name.

Yeah, I'm of the opinion that ability words should all have the same condition.

Well, as worded this is a keyword, not an ability word, so it definitely needs to stay as "whenever a player discards a card" if it's keeping this card's wording.

Sorry, I was primarily looking at jmgariepy's comment when I responded.

I wouldn't worry about the wording too much; since my templating stinks.

But "play it again sam" would be better named "Recur". And likely still too confusing, if it had too many triggers. I mean should it be exactly what the card does? Or as your example, just something related?

Wording suggestion: "If a player discarded a card this turn, you may cast this card for its eidetic cost and add though it has flash." That keeps triggered abilities out of hidden zones.