Can I get a detailed explanation on how Tryndamere's ability works?

Tryndamere’s ability is a triggered ability that rewards you for aggressive combat. Here is a detailed breakdown of how it functions based on the official rules and established FAQs.

The Ability Text

"When I conquer after an attack, if you assigned 5 or more excess damage to enemy units, you score 1 point."

Key Requirements for Triggering

For Tryndamere to score this additional point, all of the following conditions must be met:

1. Tryndamere must be the Attacker: The ability specifically triggers "after an attack." This means Tryndamere must be the unit that initiated the combat (or was part of the attacking force). It does not trigger if Tryndamere is defending, even if he wins the combat and conquers the battlefield (RiftJudge FAQ #11, #5815).
2. Tryndamere must Conquer: The ability triggers specifically when you perform the "Conquer" action.
3. Excess Damage Threshold: You must have assigned 5 or more "excess damage" to enemy units during that combat.
   • What is excess damage? This is combat damage dealt to a unit beyond its remaining health.
   • Combat Damage Only: Tryndamere’s ability counts only combat damage. Spell damage can help reduce a unit's health, making it easier to reach the 5-damage threshold, but the damage that "overflows" must come from combat (RiftJudge FAQ #5311).
   • Units must be present: If there are no enemy units to assign excess damage to (e.g., attacking an empty board), the ability cannot trigger because no combat damage was assigned (RiftJudge FAQ #4400, #3006).

Important Nuances

• Winning the Game: This ability can be used to reach the 8th point to win the game. Unlike the standard "Conquer" point, which requires you to have scored from all other battlefields that turn, Tryndamere’s ability does not have this restriction. You can win the game with this ability even if you only conquer one battlefield (RiftJudge FAQ #7005, #63).
• Timing: The ability triggers as part of the "Scoring" event. You score the standard point for conquering first, and then Tryndamere’s ability triggers (RiftJudge FAQ #63).
• Not a "Hold" Ability: Tryndamere’s ability does not trigger when "Holding" a battlefield. Holding only occurs when you attack, but the ability specifically requires the "Conquer" action (RiftJudge FAQ #7828).

Summary Checklist

If you are wondering if Tryndamere will score the extra point, ask yourself:

• Did Tryndamere attack? (If he defended, the answer is No).
• Did I conquer the battlefield? (If you didn't conquer, the answer is No).
• Did I assign 5+ excess combat damage to enemy units? (If the board was empty or the damage wasn't high enough, the answer is No).

If the answer to all three is Yes, Tryndamere will trigger and score you an additional point.