Pull the squishy Milio in with Rocket Grab (Q), then use the Static Field (R) silence to block the Breath of Life (R) cleanse/heal and finish him with the Power Fist (E) knock-up and burst. Milio has no escape.

With zero mobility, once caught by Rocket Grab (Q) she dies instantly to the Power Fist (E) knock-up. As a healer her early armor is low, so a single hook pick collapses the lane.

With no self-escape she is vulnerable to Rocket Grab (Q) from brush. The Rocket Grab (Q) → Power Fist (E) → Static Field (R) combo silences and melts her in an instant.

As an immobile poke mage, once hit by Rocket Grab (Q) he dies with his Life Form Disintegration Ray (R) cast and any counterplay shut down by the Static Field (R) silence.

With no mobility she is grabbed by Rocket Grab (Q) before she can lay down plants, knocked up by Power Fist (E), and being very squishy she dies in a single combo.

With the shield and move speed from Inspire (E), amplified by Mantra (P), she easily slips out of Rocket Grab (Q) range, and Mantra (P)-empowered Inner Flame (Q) poke keeps chipping down the approaching Blitzcrank to pressure the lane.

Black Shield (E) blocks Rocket Grab (Q), the Power Fist (E) knock-up, and the Static Field (R) silence, nullifying the hook pick entirely. Conversely, if Blitzcrank gets caught by Dark Binding (Q) he is instantly bursted down in return.

Howling Gale (Q) and Monsoon (R)'s knockback push away Blitzcrank's follow-up, while Eye of the Storm (E) shields an ally pulled by Rocket Grab (Q). Janna cannot reverse the hook itself, so keeping its line clear in front of allies remains important.

As a tank with his own hook in Dredge Line (Q), even if Blitzcrank lands Rocket Grab (Q) it is wasted on a low-value target, and Nautilus wins the counter-engage with a longer CC chain of Dredge Line (Q) → Riptide (E) → Depth Charge (R).