Like most Magic: The Gathering cards, the value of Indicate depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Mystery Booster 2)
We get it
It could technically do something alongside Ultima, Origin of Oblivion, but thats still not going to be worth it
Its especially strong when paired with cards like Benevolent Geist and Taigam, Ojutai Master that protect your noncreature spells from being countered, giving you the spell and the doves
You can sometimes "splash" a third, playing two colors as your base and a couple powerful cards or additional costs of another color, but I'd really focus on the two colors you want here
For just casting Battle for Bretagard and letting the Saga page through its chapters, you get four 1/1 tokens