The intentional parallels between Nasus and Renekton:
Both have auto resets 
W 
Q
Both have AoE abilities Q E
Both have healing of some sort Q P
Both have ultimates which grant stats or resources over time as well as AoE magic DMG per second.
(Also max health)
I know, pointless post. I just wanted to point out how differently two similar kits can be played. It's interesting.
I mean, they are brothers after all.
So it does indeed make sense.
Both have armour shred too.
Not only that, consider that Renekton is a early game champ, usually dominating lane, like his character in battle. While Nasus takes his time, farms then dominates mi.. I mean late game.
ziggs and xerath are pretty similar too
auto attack modifier: 
passive
long range spammable poke ability: Q
ranged hard cc/peel ability: W E
poke ability with a slow: E W
both have semi-global ults
both have ridiculous waveclear
theres probably some more of these combos in the game(looks at janna/lulu)
