Inspirational Ballad can be potentially a 24-point card for 4 provisions, but it is extremely conditional. It needs 4 different units with specific tags (Dwarf, Human, Vampire, Witcher) and enough turns for all the vitality. This version of ST Ballad makes the second requirement much easier with Frog Mating Season and possible 2nd FMS through Filavandrel (buffed by 3 leader charges), while consistently having all the tags except for Vampire. If you have the other three tags and Frogs on the board, it might only take 2 turns to get the
18 points from your 4prov Ballad.
Triss can create a Ballad, and Poet can play a Ballad and a human target on the same turn. Runemage can find you a Vampire tag or a missing Witcher/Dwarf tag.