There are only two ways to raise relic yield-per-hour: (1) explore a HIGHER-LEVEL relic, (2) Alliance research. Speed by level: Mysterious Relics 390/5s per player > Lv5 300 > Lv4 270 - so prefer Mysterious Relics only (Keep 20+ required to enter; bring one out with a 'Magic Treasure Map', composed Common>Uncommon>Rare>Legendary>Epic>Magic). Research: Alliance > Mysterious Relic Exploration (+20% max) and Adv Mysterious Relic Exploration (+20% max); the boost applies to resources, fragments, hammers and items (increases total item count). Verified to have NO effect on relic yield: general choice/level, skills, troop type/level, equipment, monarch gear, items, power, troop-load, resource-gathering-speed, and resource-gathering-amount-boost. (A troop-load skill inflating the pre-march gather time is a glitch - no real gain; do not send Attila/Amir Timur for relics.) Adding more players to a relic only clears it faster; it does not raise per-player speed. Note: this 'relic' is map relic-tile gathering, not an SvS/event relic currency.
Original research source: Evony Guide Wiki
