I’ve gotten lucky draws before, but the second-hand one-man army made it extra-fun. 
Giving Rot Hide Gnoll and Handless Forsaken reborn was only the start. Trinket that adds +1/+1 to tavern spells each turn, Fauna Whisperer, a minion which adds +1/+1 to tavern spells (I forget… I think it was a neutral minion?) and, of course the first Cryptlord with reborn.
Have you had combos that were amusing and useful?