Modern white Auras in MTG , for example, dont just buff stats
Their only ability lets you exile a card from your graveyard to discover for X, with X equalling the mana value of that card
Mana Geyser is the most accessible of the big-mana rituals in red, and it gets the job done
For example, with Yixlid Jailer ("Cards in graveyards lose all abilities") on the battlefield, a Me with a counter on it in a graveyard loses that counter when it's put onto the battlefield
While she is less powerful than Ajani Vengeant she gets slightly more play simply from her colours having more supporting archetypes
The fail case is still a two mana 2/2, and Im willing to give all of them the benefit of the doubt (as long as they have more play than Goblin Assailant