With a +10 ring of Arcana, stepping on grass grants you 32.5 turns of invisibility.
Attacking with the blooming scythe spawns a ton of grass as well.
And as the assassin, spending 9 turns while invisible provides a guaranteed one shot kill.
Deadly combo.
I had a warrior run recently w/ a blooming weapon (I think it was a shortsword or something) and a camouflage cloth armor and it was so fun! Would love to try this combo in late game someday.