Bisky the Bold

Nen Ability -- At the beginning of your combat
step, you may pay X life. Bisky gets +X/+X,
trample, and double strike until end of turn.
Gon: Is that your girlfriend?...
Killua: What?... Who?...
Gon: That sweet little girl! Bisky!...
Killua: You're wrong on two accounts.
Gon: Why?
Killua: That's not a sweet little girl, and NO
she's not my girlfriend!