Here is the current T2 win that is easier to assemble than the T2 wins of shop decks in the past. This is because they require less restricted pieces than before.
T1 on the draw -(8 cards)Workshop, Inspector, Sol ring Or Black Lotus Or Mana Crypt, 2nd Inspector, steel overseer, ravager, ravager, ballista
T2 - draw a card play whatever it is, land or artifact. The card is pretty much irrelevant. Activate overseer, attack with two 4/3 inspectors, two 2/2 ravagers, one 2/2 ballista. 14 damage. Then finish off with ravager/ballista machine gun. Well over 20 damage T2, only 1 restricted mana producer required.
There are more t2 kills than this though that are easier to assemble than the older ones. When you start adding fleetwheel cruiser into the mix it can get just as silly. On the draw- T1 workshop + lotus or ring or crypt + double inspector + ravager. T2 ancient tomb + ballista + double feetwheel. attack for 17, finish off with ravager/ballista machine gun.