This is my deck that I use for casual games with friends. It's a cheap, aggressive, and powerful deck!
Creatures
Elvish Mystic - Effective turn one mana ramp
Burning-Tree Emissary - Basically a free creature. I like to have at least one of these in my starting hand. If you have multiple ones, you can put out up to four creatures turn two!
Fanatic of Xenagos - Hard to turn down a 3 drop 3/3 with trample especially when it's a creature that makes your opponent choose whether they want to hurt now or later
Flame-Wreathed Phoenix - A good finisher. I like to get him out as I've gotten my opponent to really low life
Flinthoof Boar - Excellent early game aggressive creature
that's basically a 2 drop 3/3
Ghor-Clan Rampager - Wanna put on the hurt for only two mana? Simply discard Ghor-Clan from your hand and buff your creature +4/+4 while giving them trample!
Legion Loyalist - A natural choice for a creature heavy aggressive deck. Once you have him out plus a bunch of other creatures, your creatures will be very difficult to kill
Xenagos, God of Revels - Mainly a finisher, and is good to buff up your creatures. He mainly comes out if the game ends up going longer than anticipated
Spells
Magma Jet - Good early game removal and the scry 2 is very handy
Lightning Strike - Easy early game removal
Rancor - Stick these onto one of your creatures to instantly buff it up and give it trample. Your opponent gets rid of it? No worries! It'll just go back to your hand!
Planeswalkers
Xenagos, the Reveler - Free mana and creatures, what's not to like?