The idea that an event is destined to happen and the struggle to avoid or accept it plays into the narratives of a lot of my favorite heroes, which is why I was delighted to see these concepts implemented in Kaldheim with the foretell mechanic
Magic does currently have an abundance of these styles of cards though
Couple this with the more generic options like Metallic Mimic and Adaptive Automaton and you could easily fill a deck with tons of these cards
Building a deck around her could go just about any way, from your typical Group Hug strategy, to mill, to general Storm, or even the route of aggro
However, this time can be reduced by using Pack Hourglasses
To sing a 10-cost Sing Together song you could: exert ten 1-cost characters, or one 10-cost character, or one 2-cost, one 3-cost, and one 5-cost