The Wish-Keeper is a crowd-control-oriented bow that's especially valuable in high-difficulty PvE content in Destiny 2. At base, it's capable of suspending targets with Strand traps, making them take more damage from Wish-Keeper itself. While it's not as great at deleting things outright, it's particularly useful for anything that's hard to kill, like Tormentors, minibosses, and shielded Phalanxes.