First released in the Tempest set back in 1997, Slivers generally have unique abilities or effects that affect all other Sliver creatures you control and sometimes sliver creatures your opponent controls too
Then you can reshuffle your deck with fetchland, ramp, and tutors to see three new cards reliably and this will draw you all of the cards
resource management faster than a pure aggro approach, even in a casual, non-rotating playgroup
These types of spells were interesting in that they rewarded playing with multicolor cards, as a spell with both colors triggered twice
Blink effects are one way to go about it: Emiel fits right into Frodo Bagginss color identity
It gives lifegain on entry triggers and rewards you with card draw once you hit the life threshold, so routine board development keeps paying you back