You choose which player, planeswalker, or battle the tokens are attacking
This can make big creatures even tougher, or it enables tricky effects that are based on adding or removing +1/+1 counters for various effects
I've added those to a separate page, if you're interested in seeing them, along with the handful of cards I do own
Some adventurer cards in Wilds of Eldraine feature Adventures with different colors than their associated creatures or enchantments
Falling into the Ruby ink type, Aladdin - Heroic Outlaw has a high summoning cost of 7 ink, but, like some other cards, has the "Shift" trait, so it can be played on top of an already-in-play Aladdin card for only 5 ink
These colors are often associated with control, artifice, and intricate plans, fitting the intellectual and often politically charged adventures of the Scions of the Seventh Dawn