Emblems are an enchantment-like ability that sits in the command zone
Tidus, Yuna's Guardian goes all in on counter shenanigans, moving them around and proliferating
Kethis, the Hidden Hand Check out this legendary three-drop in the reanimation colors
On top of this, Sprite also provides a 2/1 Flying body for three mana, which is more than acceptable in Limited
The most problematic and difficult to deal with permanents in a game of Limited are frequently large fliers like Twinflame Tyrant, terrifying equipment like Celestial Armor or Leyline Axe, or enchantments like Valkyrie's Call, and Vivien's -3 ability does a great job at dealing with these threats in a hurry
Cards like Rapunzel, Gifted with Healing, let you draw and heal, while Elsa, Spirit of Winter, can freeze opposing characters, buying you time to quest safely