When Backup Agent enters the battlefield, put a +1/+1 counter on target creature.

Flying At the beginning of combat on your turn, choose up to one — • Tap target creature. • Target creature doesn't untap during its controller's next untap step.

Lifelink When Extraction Specialist enters the battlefield, return target creature card with mana value 2 or less from your graveyard to the battlefield. That creature can't attack or block for as long as you control Extraction Specialist.

Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.

Flying When Inspiring Overseer enters the battlefield, you gain 1 life and draw a card.

{W}, {T}: Tap target creature.

When Seven-Tail Mentor enters the battlefield or dies, put a +1/+1 counter on target creature or Vehicle you control.

Flash Flying

Vigilance {4}{W}: Put a +1/+1 counter on Unholy Officiant.

Flying Whenever one or more other creatures with power 2 or less enter the battlefield under your control, draw a card. This ability triggers only once each turn.

Return target creature to its owner's hand. If its mana value was 3 or less, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Destroy target attacking creature.

({T}: Add {U}.)

({T}: Add {W}.)