A concrete practice-tool routine for Naafiri, built around its real cooldowns and ability costs.
Naafiri spawns packmates that attack the targets of her attacks and abilities.
Do nothing else for five minutes. The passive is the piece nobody isolates, and it is the only part of the kit that is always available.

Naafiri spawns packmates that attack the targets of her attacks and abilities.
Naafiri hurls up to two daggers, each inflicting bleed, or each inflicting bonus damage if the target is already bleeding. Packmates leap to attack the first champion or monster hit by this skill.
Naafiri becomes Untargetable and empowers her pack, spawning additional packmates and gaining increased Move Speed and Attack Damage.
Naafiri dashes and damages enemies in an area around her, recalling her packmates and fully healing them.
Naafiri and her packmates dash at a champion, dealing damage. Naafiri reveals nearby enemies if she scores a takedown and can recast this Ability once. The second cast grants a shield.
Practice tool lets you reset cooldowns, which is useful for learning a combo and useless for learning a champion. Turn the reset off and cast on the real timings — knowing what an ability's downtime feels like is most of what separates a comfortable champion from a new one.
Naafiri is mana-gated, which is the real limit on how often you can contest a wave early.
Unglamorous, and the highest-value five minutes of the routine. Melee champions have completely different tower-farming patterns, and this is where you find out which one you are actually playing.
These are the designers' words, not ours — the tips shipped in the client for Naafiri.