Its the backbone of various cascade decks, most notably ones leveraging either Crashing Footfalls or Living End
(It's an artifact with ", , Sacrifice this token: You gain 3 life.") Whenever you create a token, put a +1/+1 counter on target creature you control other than Rosie Cotton
We know you want to savor the moment when your dragons take flight, so we're throwing in all the tokens you need from the tiniest faerie dragons to the treasure tokens to copy and spirit tokens and more
The best of these are cards that are both flexible in what kinds of lands you can find and are spells that you'd actually want to cast
Those are just characters, as Megabot, Baymaxs Healthcare Chip, and Heffalumps And Woozles all give you more options to play with, including banishing an opposing item from play, healing damage from your characters, or making it so a character cant quest during their next turn