If this gets 10 up-votes ill write a general guide. 50 ill make a class specific.
So general guide. Mill for Overgrowth and Oaken summons. Obviously keep cards dependent on what you're playing. Example: Demon Hunters play a lot of low cards, don't throw away wrath or spellstone.
Tip literally anything except Elysiana you can play of jepetto... it re-summons it with the original stats.(Obviously not those without taunt)
After that just be smart, if you only have 3 big taunts in the GY, 10 mana and Hadronox Naturalize combo in hand, and you're down to a questionable health... USE IT.
That adds an additional copy of each minion to your graveyard (when it dies...obviously). Now you Witching hour and cube. Bam 6 huge minions.
P.S. So... Hex and Polymorph are your worst enemies.... They are both beast
If you face alot of Demon Hunters you can replace Elysiana with Starfall. Can also substitue 1 of the taunts if the majority are Demon hunters for a 2nd starfall.