by Einsiedler
In my (German) rules this seems quite clear.The action "First monster enters empty Tokyo if it has a claw" is listed under STEP 2 of the monsters turn.
Step 1 is the "up to 3 times rolling" phase.
Step 2 is the "use the result" phase.
So: no one cares if there are some claws during STEP 1 unless you end up with at least one claw in step 1.
Der Einsiedler