Strange held back for a moment while the spell tried to push through whatever barrier the hotel had tried to force upon it, the look on Loki's eyes questioning him even moreso. It was a lot to open your mind up to someone considered a rival in the least, if not an enemy. But it was necessary if they wanted to try and break the cycle.
"Don't say I didn't warn you," he muttered, wrapping his sparking palm around Loki's forearm. Their connection point was covered in a band of golden light and runes wrapped around their arms and Strange gasped in sharp pain as it dug into his brain in turn.