The Telesto and Symmetry exotics do double damage when the Energy Accelerant mod is equipped. The mod states that "Your Dragonfly, Chain Reaction, and Firefly explosions deal more damage." The symmetry scout rifle has the potential to 2 hit in crucible with NO stacks of dynamic charge. It tracks, 2 hits, and requires no skill. Telesto also has the potential to hit from across the map in pvp with ease with double damage. In the meantime, either telesto and symmetry should be disabled, or the seasonal mod should be disabled.