The Sightless Seer provides the Deepwood Groaks with a uniquely disruptive tool that no other faction possesses: an extremely long-range unit capable of shooting over gates, even if it can only target common units.
A Sightless Seer with 5 boosts has an incredibly long range, putting enemy factions in difficult situations if they don’t apply pressure quickly. The ability to poke at commons from such a distance forces your opponent to either engage with their summoner or champions within range or play aggressively with their commons—both of which can expose them to devastating attacks from your Bloom Warriors. If your opponent is keeping their distance, load a Seer with 5 boosts and start poking at their commons.
This unit makes gates especially valuable for the faction. A Sightless Seer protected by a gate becomes a powerful asset, even with just 2 boosts, as it can attack enemy commons while those commons are forced to deal with the gate first.
As mentioned, the Sightless Seer doesn’t always need 5 boosts to be effective. Summoning one with fewer boosts to execute diagonal attacks, shoot over your units, or target a valuable common is a great way to add a third attack in tight formations. After its initial work is done, you can remove the 2 boosts, leaving you with a decent 2/3 unit. This small body can still play a crucial role in protecting positions. So don’t hesitate to summon a Seer with fewer boosts, use it for a quick strike, then repurpose it for defense.