Below are some of my recommendations, but I would mostly recommend you check out the CommandZone on Youtube - they have a deckbuilding guide that is very good
This has become a very popular way to make new mechanics, so let's walk through the different ones Magic has used
It turns out that a look at their hand and a scry is all really good, especially on turn one
Creature Enchantment - Avatar Horror Polygoyf Trample, myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control
Pretty easy to pull off in this deck, and a big threat with all the tokens this deck makes
You can reanimate them with in-color effects like Unburial Rites or Beacon of Unrest