Counter Tips

Netrual: Shadow Sneak is your greatest friend and worst enemy. Timing it to go through the Castlevania Boys' projectiles is the key to winning neutral. Also challenge with your own Shuriken.

Aerial: Castleboys are usually grounded characters. Use Greninja's naturally high jumps to avoid the Axe, and try not to rely on Dair to much, as shield and UpSmash or Holy Water is a huge punish.

Off Stage: This is where you win matches. Castleboys have terrible recovery, and with Shadow Sneak and Hydro Pump, you should be able to avoid their edgeguarding projectiles. Be aggressive here.