Rune concept

I would like runes that actually give useful utilities to oneself Like, for example:

1. A rune that reduces the recall duration by like 1 second

2. A rune which punishes the enemy for attacking you would be great to discourage aggressiveness plus give some cool buffs to the victim, like increased movement speed or just make you invulnerable (An effect like Xhonya's but very short)

3. A rune that lets you buy items away from the fountain, but of course it would be more expensive plus you cant use it while in combat

4. A rune that slows enemies around you