Just by having Liliana, Dreadhorde General on the board, a player gets the ability to draw a card whenever a creature they control dies
If you don't have seven or more cards in your graveyard at that time, the ability won't resolve and none of its effects will happen
Unfortunately, Ghalta doesn't provide any value upon immediately hitting the battlefield, so you'll probably want to have some kind of removal protection or method of giving the Dinosaur haste to ensure casting the card is worthwhile
Ringwraiths also synergize with The Ring Tempts You mechanic from the LTR set
Even outside of tokens, this can serve as a sneaky finisher
Ezuri's passive ability lets you draw a card whenever you proliferate, turning any spells and abilities that would add counters into cantrips