With this cheap deck you can get about 45-50% wins as level 20. The basics os this deck is playing heaps of low health minions, and then buff them. You can change some cards as you need (example: novice engineer instead of loot hoarder), as long as you keep the basics of this deck: Plenty of low-life minions. Only cards that will either buff or receive buffs at a multiple-low-cost minions situation are allowed (no fatties). Instead of playing high-cost mana, I chose to play cards that summon minions, or cards that will buff those. You can replace blood imp with something else if you wish, as it is not a common card.
bought the trial, yesterday bot used "mortal coil" on my own "scarlet crusader" will it work good on this deck?
Vs. real player. We must keep in mind that the bot will never win more than 50%. That applies to people too. Why? Because it is a ranked game. The more you win, the more you go up rank and more difficult the opponents become, making you win less. This process of auto-adjusting difficult stabilizes at exact 50%. So, any bot that win 50%, or can stay above level 20, is as good as it can become, regarding gold farming.
the mortal coil has really bad logic. i heard it sometimes kills your own minion in my own game, the bot used mortal coil on a 3/2 instead of a 2/1...