Miss Butler, Smiling Siren

Partner (You can have two commanders if both have partner.)
Whenever you draw your second card each turn, tap target creature an opponent controls, then put a stun counter on it.
{3}{u}{u}: Whenever Miss Butler, Smiling Siren deals combat damage to a player, you may gain control of target tapped creature that player controls until Miss Butler leaves the battlefield.

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“The melody calls to you, sweet and dangerous.”