Runes need clarficiation

Nullifying orb (Inspiration, contraptions) If your giving a hexdrinker passive to a rune, enemy should be aware whenever someone use it and its cooldown. If I plan to tower dive someone I need to know If i can burst him. You already do that for Manaflow band on the same tier, my mana become aqua and white for enemy. (I play in colorblind, your color might be different).

Celerity (Sorcery, Excellence) Add 8% of your bonus movement speed to your AP or AD, adaptive (based on level). So is it 8% or is it based on level, if it's based on level what's the number?

Kelptomancy (Inspiration, Keystone) How am I suppose to base a strategy on random probability I don't have any informations? I'm not talking about the gold loot (20 gold to 100 gold), i'm talking about loot probability. I tried it today, I looted multiple item I never heard before but I assume most of them were ancient conssumable removed from the game like mana potion.

Electrocute (Domination, Keystone) 50 - 25 secondes cooldown based on level. Yeah, but what's my current cooldown at the level I am right now? On thunderlord we had this information just by hovering the keystone. All i have is a logo with a horloge shadow, but it still doesn't tell me any number.