armor seals/hp level seals
mr blues/scaling mr blues
Cdr quints and/or gylphs - situational
Max R, W, Q, E
(these items may be situational, but can be used)
Frozen heart, boots of lucidity, randumins omen, bansheeis veil, righteous glory, talisman of ascension, LICHBANE, thornmail, warmogs, sunfire.
**Your aim should be to get a minimum of 30cdr**
Good map awareness
Draw cards specific to that situation in a small time frame
Ability to last hit with succession
Surviving the early lane
Boots of lucidity rush, into 10% cdr component of frozen heart > shorter cd on ult > several spell rotations during a gank (specifically if they are overextended)
Very long stun at max rank which stops foes from escaping, also peels enemy foes like a Nasus with a maxed out w.
Punishes over-extension severely
Allows you to have a real presence in the early phases of the game
with lichbane and all that cdr you take towers down reasonably, provided how tanky you are.
Reliant on your team to follow up on plays (not really if you are responding to a party in the bottom lane; 5v4, 3v3, etc)
Reliant on your team to deal satisfying dps throughout the game.
Reliant on extracting an advantage.