Hapatra, Vizier of Poisons Hapatra, Vizier of Poisons pumps out deathtouching Snake tokens anytime you place a -1/-1 counter on a creature
Damia works well with cards that grant you multiple draw steps and take extra turns to maximize all those cards you're drawing
Think Skullbriar, the Walking Grave, but for a variety of different effects like losing abilities, permanent stat increases, etc
Obviously, that deck is a bit of an implementation against last years Blade Splicer into Hero of Bladehold Ones-and-Fives G/W
There are plenty of other kinds of decks you can build and I cant list all of them, but these archetypes should be enough for you to understand what you can expect from other players and point you in the right direction to get started
If you do, convert Ultra Magnus at end of combat