This is doubly true of typal payoffs that care about how many of the supported type of creature you control, or ones with creaturefall effects that want to see more bodies enter the battlefield
Saheeli, Sublime Artificer I think Im less excited about Saheeli, Sublime Artificer than some of my peers, but I do recognize the value a Young Pyromancer proxy that isnt targetable by creature removal can potentially provide
Other good examples include Shard Phoenix and Silklash Spider
Command your army with Ureni, spirit dragon of wisdom, or Eshki, leader of the Temur clan
In some ways, it's not actually an amazing card, since this is a six mana spell that does nothing if you don't have a good board state
But it is still important to remember that state-based actions are not applied until you have finished resolving the full text of a spell, or during turn-based actions where players do not gain priority