The mask isn't meant to hide his identity. It's meant to keep the viscera out of his eyes.

仮面は彼の正体を隠すためのものではない。臓物が目に入らないようにするためのものだ。

跳ね散らす凶漢

先制攻撃
解鎖（あなたはこのクリーチャーを、＋１/＋１カウンターが１個置かれた状態で戦場に出してもよい。これの上に＋１/＋１カウンターが置かれているかぎり、これではブロックできない。）

面具不是用来隐藏他的身分。这是用来不让内脏喷到他眼睛。

溅血刺客

先攻
脱缰（你可以让此生物进战场时上面有一个+1/+1指示物。只要其上有+1/+1指示物，它就不能进行阻挡。）

Splatter Thug

First strike
Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

RNA Guild Kit

First strike
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Iconic Masters

Return to Ravnica

Putting a +1/+1 counter on a creature with unleash that’s already blocking won’t remove it from combat. It will continue to block.

The unleash ability applies no matter where the creature is entering the battlefield from.

A creature with unleash can’t block if it has any +1/+1 counter on it, not just one put on it by the unleash ability.

You make the choice to have the creature with unleash enter the battlefield with a +1/+1 counter or not as it’s entering the battlefield. At that point, it’s too late for a player to respond to the creature spell by trying to counter it, for example.