Revivification
From Xhodon
When a player defends against a considerably stronger opponent (details see Class System) and loses, they get some of their creatures revived by the Felúndin. The exact percentage of lost creatures revived depends on the gap between the two players' points. If the stronger attacking player had slighlty less than ten times the defender's points, the percentage is about 80%.
Losing a battle against a Sentinel will always give each lost creature a 40% chance to get revived. If the player is servant of a guild, this chance increases to 60%.