Champion Runes Legacy

Currently leveling my champion (3rd char) after a long break in playing him and seeking some advice regarding the legacies to select for Champion rune so have a couple of questions...

1. Planning on having a single target and AOE build and wondering would I get away with just leveling a single rune that will cover both builds. I dont plan on attempting anything above T3 on him.

2. Are champions a viable option for tanking using the Martial line? I have ignored this line completly but wondering if I need to give it a closer look. Would this require a set of tank specific weapons/runes?

3. For a single target build what are the must have legacies for the rune?

4. For a AOE build what are the must have legacies for the rune?

5. For a hybrid rune what would you recommend?

Appreciate any thoughts/comments.

My two cents:

Tanking - Blue line is quite broken. Has been for a long time. Chanks can tank stuff, but they are the worst tank class in the game.

Red line / single target legacies:
- Devastating Strike Damage Multiplier
- Merciful Strike Damage
- Fury of Blades Damage from Fervour (affects Merciful Strike)
- Swift Strike/Swift Blade Power Cost and Swift Strike Damage

Yellow line / AoE legacies:
- Blade Line AoE Power Cost and AoE Skill Critical Damage
- Blade Wall Damage
- Exchange of Blows Melee Damage
- Fury of Blades Damage from Fervour
- Raging Blade Damage
- Swift Strike/Swift Blade Power Cost and Swift Strike Damage

When going for a mixed red/yellow rune, I'd choose:
- Blade Line AoE Power Cost and AoE Skill Critical Damage
- Blade Wall Damage
- Devastating Strike Damage Multiplier
- Exchange of Blows Melee Damage
- Fury of Blades Damage from Fervour
- Raging Blade Damage
- Champion's Horn Stun Duration and Horn of Gondor Physical Mitigation Debuff

Of course you'd miss a few legacies here (Merciful Strike, Swift Strike).

Full list of available legacies:
https://lotro-wiki.com/index.php/Cha...ndary_Legacies

Many thanks for the response Gorikon. I'm going o go with a mixed rune most likely based on what you suggested.