Sportass

Bedrohlich
Immer wenn das Sportass angreift, bestimme bis zu ein Nichtland-Permanent deiner Wahl. Sein Beherrscher kann es opfern. Falls er dies nicht tut, fügt ihm das Sportass 5 Schadenspunkte zu.
Blitz {3}{R}

Athlète vedette

Menace
À chaque fois que l'Athlète vedette attaque, choisissez jusqu'à un permanent non-terrain ciblé. Son contrôleur peut le sacrifier. S'il ne le fait pas, l'Athlète vedette inflige 5 blessures à ce joueur.
Blitz {3}{R}

花形アスリート

威迫
花形アスリートが攻撃するたび、土地でないパーマネント最大１つを対象とする。それのコントローラーはそれを生け贄に捧げてもよい。そうしないなら、花形アスリートはそのプレイヤーに５点のダメージを与える。
奇襲{3}{R}

Star Athlete

Menace
Whenever Star Athlete attacks, choose up to one target nonland permanent. Its controller may sacrifice it. If they don't, Star Athlete deals 5 damage to that player.
Blitz {3}{R} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

Duskmourn: House of Horror Commander

Menace
Whenever Star Athlete attacks, choose up to one target nonland permanent. Its controller may sacrifice it. If they don't, Star Athlete deals 5 damage to that player.
Blitz {3}{R}

If a creature enters as a copy of or becomes a copy of a creature whose blitz cost was paid, the copy won't have haste, won't be sacrificed, and its controller won't draw a card when it dies.

If the creature was cast using its blitz ability, the triggered ability that lets its controller draw a card triggers when it dies for any reason, not just when you sacrifice it during the end step.

If the target permanent is an illegal target as Star Athlete's second ability tries to resolve, it won't resolve and none of its effects will happen. No player will be dealt damage, and no permanents will be sacked . . . er, sacrificed.

If you choose to pay the blitz cost rather than the mana cost, you're still casting the spell. It goes on the stack and can be responded to and countered. You can cast a creature spell for its blitz cost only if you could cast that creature spell. Most of the time, this means during your main phase when the stack is empty.

If you pay the blitz cost to cast a creature spell, that permanent will be sacrificed only if it's still on the battlefield when that triggered ability resolves. If it dies or goes to another zone before then, it will stay where it is.

You don't have to attack with the creature with blitz unless another ability says you do.