Hearthpwn

Mulligan for draw or 3-4 mana taunt against aggro

Draw and buff little guys to get to the more substantial buffs, keeping as many minions in hand when you do. It won't be long before your putting out +5+5 or more onto the board.

Apply pressure when you know the opponent doesn't have the mana/ cards to counter, careful of cheeky spells like Hysteria

Try to play mechs the same turn you can magnetise them, Cobalt Guardian activates his shield on a magnetic so keep that in mind

Alliance Bannerman replaces Grimestreet Outfitter when stormwind comes out

Cobalt Guardian is a very old card but only a rare but if you don't wanna craft it replace with Wargear, maybe Psych-o-Tron