Hi. I wanna present you a Malygos OTK shaman, it's not popular deck and I don't really know which tier should I put it in but, it's crazy fun and effective.
Main role is stay alive as long as you can, draw your combo pieces and kill in one turn opponent.
I suggest you to ALWAYS keep Malygos on your hand, because we don't have a straight malygos draw. Rest of combo pieces are drawable by other cards.
Replaces: Hagatha the Witch can be swapped for another card draw or weapon (up to you which one). Bloodmage Thalnos he is very very good combined with Beakered Lightning but if you don't have him you can use one more Far Sight. Since this deck has alot of overload, I highly suggest you to put Snowfury Giant (I can't tell it is going to be viable because I do not have this card, but 8/8 body is quite good to distract opponent from focusing on board build).
Before you do combo, you have to lower cost of Electra Stormsurge by playing Fire Plume Harbinger to be able play more spells in one turn. If enemy has about 26hp, you can kill him by playing x2 Lightning Bolt, so Electra have to cost at least 2 mana.
Combo: Once you have: Eureka!, Electra Stormsurge, Lightning Bolt, Frost Shock and Malygos, put Electra Stormsurge first, then Eureka!, so you have two malygoses on board and kill opponent with spells.
As a reason to not put alot of minions into deck is Eureka! summoning a copy of RANDOM minion from your hand, which mean you have to get rid of rest of minions from your hand before you start doing combo.
Hagatha is here because of 3dmg AoE, which is very helpful against aggro.
*caution* this deck is made only for FUN, it's not good on climbing ladder because this set-up doesn't do well against high armor heroes for example druid and warrior. Odd palla is kinda not beatable since he can in one turn re-build his board.