***TRIALS RESPONSE***OK, I'm not sure what you're trying to do here. At first I thought you wanted a Scarab deck, but apparently you just want a mean time deck. With that in mind, most of my post will be focused torwards showing you some Time-based decks.
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The swarm1. Play Scarab
2. Fractal said Scarab
3. ???
4. Nom
This deck focuses on getting out a ton of scarabs as fast as possible, in order to both mitigate the other player's creatures and to provide a quick and reliable source of damage. My favorite part about it is that once you get it rolling, it is nearly impossible to stop. Very little CC can really touch 10 HP scarabs.
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PoisonA faster version of what Mathematistic suggested you, this deck is faster than the previous one, while being more prone to creature control. However, it still has a way around it, namely Neurotoxin.
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DragonsThis is my favorite time deck. You might notice it is not as nifty as the other 2 ones, as vulnerable to CC as a deck can be an really simple. However, this is more of an advantage than a disandvantage. The plan is to quickly overrun the opponent with mighty 10 damage Dragons, this deck being really fast and deadly.
There are many more interesting, fun, cool and effective decks you can do using Time, but these 3 decks will give you a really nice start, beating up level 3 on a solid basis so you can get the money and the cards to form exciting new decks.