Can the final point of the game (8th point) be won through alternate win conditions like Tryndamere's ability or victory point card effects, or must it only be won by holding/conquering all battlefields?

Ruling: The 8th point can be won through any method except conquering. Holding battlefields, card effects (like Tryndamere's ability or victory point abilities), and opponent Burning Out all work as valid ways to score the final point.

Nuances:

• Only conquering has special rules that prevent it from scoring the final point
• All other forms of scoring work normally for the 8th point