The four-drop piece is, without question, Phyrexian Obliterator
I particularly wanted to have plenty of cycling lands to ensure Life from the Loam could do some powerful things before someones graveyard hate card puts a stop to the fun
Eye of Nidhogg overwrites all previous effects that set the creature's base power and toughness to specific values
Moldervine Reclamation this is not, but the added benefit of cranking out a Thopter every turn is interesting whats not interesting is the white color identity, which limits the goofball mono-blue Thopter decks you can put the Thop Shop into
Charismatic Conqueror Charismatic Conqueror, for two mana, is a great deal
This 12-land deck not only has 17 cyclers, but it also has the BO1 algorithm working for it behind the scenes to help its player have more fun by subtly rigging their opening hand/subsequent draws