New Spell: Master Divination
"Open your third eye. Then your fourth and fifth eyes. We're just getting started."
Divination is one of the oldest forms of folklore magic and due to its many real-world (attempted) practices (from bird augury to astrology to Tarot to blind oracles to even darker methods like reading the entrails or ashes from a ritual sacrifice) it can be one of the most resonant and flavorful forms of magic in D&D. Despite that, those spellcasters hoping to specialize in divination find the spell list rather lacking. To that end, D&D Unleashed brings a few handfuls of new divination spells, including those like today's example which will appear in Legends of Prestige and Prowess.
Omnisight is one of the new Divination spells that has combat applications, though to call it a combat spell would belittle its vast utility. While many of the new divination spells in D&D Unleashed are combat-focused spells, there's already an official 9th-level divination spell for combat: foresight. Omnisight lasts an hour without concentration (like true seeing does at 6th-level) but its limited to the spellcaster only. Its main non-combat use is for exploration -- this spell lets a high-level spellcaster peer through the depths of any small to medium-sized dungeon as if they had Superman's X-Ray vision! It can be used to aid tracking or investigation, and it gives you an initiative boost to boot. Its main combat benefit (besides being true seeing on steroids) is allowing the spellcaster to cast powerful spells that normally require vision at targets who would otherwise be behind total cover, though this only allows spells like mind spike that could be cast through a glass window -- a spell like fireball will still slam into the wall before hitting the target you're looking at.
As an added bonus, omnisight gives the spellcaster a consciously-controlled form of Synesthesia, just for fun and flavor.