Flying

Discard a card: Return Skywing Aven to its owner’s hand.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

When Slithery Stalker enters the battlefield, exile target green or white creature an opponent controls.

When Slithery Stalker leaves the battlefield, return the exiled card to the battlefield under its owner’s control.

As an additional cost to cast this spell, discard a card at random.

Sonic Seizure deals 3 damage to any target.

Flying

When Soul Scourge enters the battlefield, target player loses 3 life.

When Soul Scourge leaves the battlefield, that player gains 3 life.

Tap target untapped creature you control. If you do, it deals damage equal to its power to target attacking or blocking creature an opponent controls.

Flashback—{1}{W}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{T}: Each player loses 1 life for each Swamp they control.

Enchant creature

Enchanted creature gets +1/+2 and has protection from black.

Madness {W} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Enchant creature

Enchanted creature gets +2/+1 and has protection from white.

Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Enchant creature

When Stupefying Touch enters the battlefield, draw a card.

Enchanted creature’s activated abilities can’t be activated.

{T}: Add {C}.

{T}: Add {W} or {B}. Activate only if you control a Swamp.

{T}: Add {C}.

{T}: Add {U} or {B}. Activate only if you control a Swamp.

{T}: Add {C}.

{T}: Add {B} or {R}. Activate only if you control a Swamp.

{T}: Add {C}.

{T}: Add {B} or {G}. Activate only if you control a Swamp.

Untap target creature with power less than the number of cards in your graveyard and gain control of it until end of turn. That creature gains haste until end of turn.

When Teroh’s Faithful enters the battlefield, you gain 4 life.

Flash

Threshold — As long as seven or more cards are in your graveyard, Teroh’s Vanguard has “When Teroh’s Vanguard enters the battlefield, creatures you control gain protection from black until end of turn.”

You don’t lose the game for having 0 or less life.

When you have 20 or more life, you lose the game.

Whenever you lose life, you gain 2 life for each 1 life you lost. (Damage dealt to you causes you to lose life.)

As an additional cost to cast this spell, discard X cards.

Return X target nonland permanents to their owners’ hands.

Target player discards a card.

Draw a card.

As an additional cost to cast this spell, discard X cards.

Exile X target attacking creatures.