It doesnt pull you in any particular direction, so the world is your own giant infested oyster
The effect of is a summon rule effect that can be Special Summoned if there are no monsters in your Graveyard
Sunbeam Spellbomb to find their way into the graveyard organically, but you always want to include some cards that actively support a mechanic like this Notably, delve for artifacts would also work quite nicely with dig
For example, if you control Muldrotha, the Gravetide ("During each of your turns, you may play a land and cast a permanent spell of each permanent type from your graveyard") and you cast a creature spell from your graveyard during your second main phase, you won't be able to cast another creature spell from your graveyard with Muldrotha's permission until after your next ending phase ends
Does the card have the year it was printed
Once this is done, it uses level three monsters that take advantage of it