Mank, Vison, taygete, Decimus, and to a lesser extent mandrake benefit a lot from the ramp. Taygete is a powerhouse with ramp and also has its usual fun combo with thumping. Just a lot of synergy as well as hand dumping to fuel mandrake/not overdraw. But the ramp package does take up a lot of room.
It started with young Slithar, but I Switched it to mystic for healing, and then to herald since the deck really needed the healing. Juta however really helps pull that version together.
I have been considering dropping flash/taygete for tiger/healing mystic. Still iffy on jammer as well.
If you lack visionar it does make the ramp package much less valuable. With that in mind here are some tuning ideas for your deck.
Herald over sphere, shroud over Zyx.
Probably young Slithar over blood tear. Blood is really good but the deck should be really good at closing the gap and boxing in, so ranged ping is probably not needed. Your likely better off with the value card, but I could be wrong.
I would cycle hard to try and dump my hand early with two drops, and later look to start playing draw cards once I am almost out of steam/have Decimus. Playing aggressively but probably not to much face.
Edits: Traded Eggmorph for Kujata to help empty out hand, deck has enough draw that I should be able to find a shroud when it would need a morph.