Verdant Matrix - green cloudy lines on the floor - crossing them does damage and applies a 6 second damage debuff that stacks. Try to avoid crossing too much.
Random players targeted with Threads of Life - green circle with line from that to player, with arrow moving along it. When the arrow hits it does high damage and a ticking damage - reduced by number of Verdant Matrix lines they cross. Cross at least one. If it fails to cross a line it will do massive raid wide damage. Everyone else avoid arrow.
Grass patches spawn randomly on Matrix lines .. allows safe passage over lines and increases movement speed.
At 100 energy boss casts Continuum - raid wide damage and spawns two Cycle Wardens .. one at each side. Green lines disappear temporarily .. nuke wardens and then get back to boss.
Tank mechanics: Threaded Blast - damage beam; Weavers Burden - big green circle around them that explodes doing damage based on distance - move away, place over lines as it leaves a grass patch.
ADDITIONAL HEROIC TACTICS:
Threads of Life does more damage .. cross at least two lines.
Tank mechanic - Weavers Burden will leave a debuff Woven Resonance - tank swap.