Consider the Prime Directive

Instant

Choose one —

• Interfere — Counter target spell unless its controller pays .

• 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.)

Zoltan Boros

Legalities

NOT LEGALStandard
NOT LEGALPioneer
NOT LEGALModern
NOT LEGALLegacy
NOT LEGALVintage
NOT LEGALCommander
NOT LEGALOathbreaker
NOT LEGALAlchemy
NOT LEGALHistoric
NOT LEGALBrawl
NOT LEGALTimeless
NOT LEGALPauper
NOT LEGALPenny