In this release, it represents travel-related abilities as well as some combat abilities
In order to qualify for this list, cards must affect all your tokens, either as a one-shot effect or continuously as they enter the battlefield
This idea of slowing a Zoo deck down and going bigger was fairly revolutionary, spawning countless derivatives and now just being considered its own archetype, even to this day
This includes creatures that have multiple of the relevant creature types, such as [Tooltip]Gravelgill Duo[/tooltip]
The four-drop enchantment in Green you become the monarch and in your upkeep you can drop any land to play from your hand, and a dork too if you are the monarch which isn't needed at all here
in other words, cheap permanents with good enters abilities