Consider the Prime Directive

Mana cost

{2}{U}

Type

Instant

Set

Star Trek #51 (common)

Choose one —
• Interfere — Counter target spell unless its controller pays {3}.
• Observe — Tap up to one target creature and put a stun counter on it. Draw a card. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Legality

• commander: not legal
• legacy: not legal
• vintage: not legal
• pauper: not legal
• modern: not legal
• pioneer: not legal
• standard: not legal
• brawl: not legal