ugulu said:That sounds like a most excellent plan.
Except for the part where I take an hour to resolve the combat.

I was mistaken about one thing. Rusty does not have 10 foot reach with bite, so he cannot attack before diving.
Round 784: Rusty breathes for 6. Rusty gets hit for 4. Qblob 110 HP, Rusty 67 HP.
Round 788: Rusty breathes for 6. Rusty gets hit for 5. Qblob 104 HP, Rusty 62 HP.
Round 791: Rusty breathes for 8. Rusty gets hit for 8. Qblob 96 HP, Rusty 54 HP.
Round 794: Rusty breathes for 15. Rusty gets hit for 8. Qblob 81 HP, Rusty 46 HP.
Round 798: Rusty breathes for 9. Rusty gets hit for 8. Qblob 72 HP, Rusty 38 HP.
Round 801: Rusty breathes for 8. Rusty gets hit for 6. Qblob 64 HP, Rusty 32 HP.
Round 803: Rusty breathes for 6. Rusty gets hit for 7. Qblob 58 HP, Rusty 25 HP.
Round 805: Rusty breathes for 8. Rusty gets hit for 13. Qblob 50 HP, Rusty 12 HP.
Rusty can breathe again in round 807. As Rusty could conceivably be knocked out in one blow, what do you want to do next?