Twilight Ninja Nichirin, the Chunin

Level 6 DARK/Warrior Effect Monster
2300 ATK / 1000 DEF

Once per turn, during either player's turn: You can discard 1 "Ninja" monster, then activate 1 of these effects;
● This turn, "Ninja" monsters and "Ninjitsu Art" cards you control cannot be destroyed by battle or card effects.
● 1 "Ninja" monster you control gains 1000 ATK until the end of this turn.

Rulings – Yugipedia

Printings:

Breakers of Shadow: BOSH-EN016 (Common) - 2016-01-14
2016 Mega-Tin Mega Pack: MP16-EN187 (Common) - 2016-09-01

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.15