A main thing with this deck is silencing the other player's deck. Getting rid of as much as their unit buildups as possible.
Be smart about unit casting. Don't play cards when their affect won't help you, stuff like that. Make sure a card with "Summon: Silence" actually silence something that needs to be silenced.
Follow up with cards like
Idol of Destran or
Timekeeper get played when built up, when possible. Keep attacking until finally you get the Fatality.
There is room for mistakes that need to be made in dire situations, like shuffling your void back into your deck for Round 2.