One of The Lost Caverns of Ixalans best cards to get out early in a game, Charismatic Conqueror will either provide you with a multitude of creature tokens or force your opponents creatures and artifacts to come in tapped
If you wish to raise a creature's power so its mentor ability can target a bigger creature, the last chance you have to do so is during the beginning of combat step
Emerias Call / Emeria, Shattered Skyclave Run Emeria's Call in a token deck as a win condition that lets you attack with all your creatures without fear of losing any
You can pay one mana to sacrifice an Artiface to give a Creature you control +2/+0 until end of turn, which is fun
One key factor of the Emerald/Ruby deck is the inclusion of five mid-range Evasive cards, unevenly split between Pongo: Ol' Rascal and Peter Pan: Never Landing
I think the answer is an easy yes, at least right now