Hearthpwn

Mech Pack:
Weaponized Piñata; Mechano-Egg; Mechanical Whelp
Kangor's Endless Army

Call to Arms Pack:
Call to Arms (of course); Righteous Protector; Crystalsmith Kangor; Bloodmage Thalnos; Loot Hoarder; Plated Beetle

Big Spell Pack:
Call to Arms; Kangor's Endless Army; Arcane Dynamo
Arcane Tyrant

Mini-heal Pack:
Uther of the Ebon Blade; Crystalsmith Kangor

Deathrattle combos:
>Spiritsinger Umbra + Carnivorous Cube (a good objective)

1st Prismatic Lens only can draw 4 cards (Prismatic Lens x1, Call to Arms x2 or Kangor's Endless Army x1) and the 2nd only 3 (Call to Arms x2 or Kangor's Endless Army x1), so, you've a really nice chance to draw Kangor's Endless Army and cost 6 or less.
>Spiritsinger Umbra + Kangor's Endless Army (6 or less)

>Spiritsinger Umbra + Call to Arms

Notes:
-Arcane Dynamo have a 3/10 posibility to Discover a Kangor's Endless Army 
-Giggling Inventor is the best card of the current meta, we can not leave it out

Enjoy!