Mulligans
General Mulligans
You want these cards so you can potentially get turn 5 lethal. If you have only one or two of the combo cards just mulligan it away for an anti-aggro hand. The coppertail isn't really important but it won't get removed easily because of stealth and its 4 attack.
Aggro Mulligans
This should help fight off against early game... if not, well good luck I guess.
Not entirely sure if this mechanic works but by playing Summoning Portal + Mechwarper this should get SN1P-SN4P to cost 0. So all thats necessary to pull of this combo is have any random mech to sticks for 1 turn and you can potentially do infinite damage. Now, that being said it doesn’t work that well if there are multiple taunts or you didn’t draw your Shieldbreaker. But there are other ways to deal with taunts than just silencing it so I leave it up to the person playing this deck to figure out how to pull off the combo.