Sure this has been done before, but after seeing a typo in another thread today:
Chancellar
Action
$3
+1 Action
You may immediately put your deck into your discard pile.
Discard any number of cards. +1 card per card discarded.
Chancecellar
Action
$1
Reveal the top card of your deck. Discard it.
If it has an even cost:
+1 Action
Discard any number of cards. +1 card per card discarded.
That is great.
+1
Also:
Destroyer: $6 -Action/Attack
Reveal the top 3 cards of each other players deck.
If the player is playing big money, trash all revealed treasure.
If the opponent is playing an engine, trash all revealed villages.
If the opponent is playing a rush, he gains a curse, copper and you get +1VP.
If your opponent has been reduced to a slog, +2 cards for him. +1 high-five.