msem-instigator

Return up to one target creature card and up to one target land card from your graveyard to your hand.

Prowess
When Surviving Scavengers enters, you may draw a card, then discard a card.

When Suspect Concoctions enters, put a +1/+1 counter on target creature.
{4}, Sacrifice Suspect Concoctions: Put two +1/+1 counters on target creature. (A suspected creature has menace and can't block.)

Enchant land
Enchanted land has “{W}, {T}: You gain 2 life.”

Swallowed by the Earth deals 4 damage to target creature. Destroy all Equipment attached to that creature.

Flying
When Sweeper Drone enters, create a Function token with “Put a +1/+1 counter on each creature named Sweeper Drone you control.” (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

You may tap two untapped red creatures and/or planeswalkers you control with different names rather than pay this spell's mana cost.
Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Lands target player controls don't untap during their controller's next untap step. Tap up to one target land that player controls.

Destroy target tapped creature.

Trample
When Swift Spearmaster enters, return another permanent you control to its owner's hand.

Whenever Swift-Fingered Sneak enters or attacks, you may discard a card. If you do, draw a card.

Flying, first strike
When Swiftclaw Griffin enters, return a creature you control to its owner's hand.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Swiftstep Cliffdweller has haste as long as you control another Goblin.

Swiftwater Cliffs enters tapped.
When Swiftwater Cliffs enters, you gain 1 life.
{T}: Add {U} or {R}.

When Swiftwheel Slayers enters, audition for red. (Create a 1/1 Construct Actor creature token, a Warrior Role giving 3/2 and trample, or a Wizard Role giving 2/2 and prowess. Roles replace older ones.)
Token creatures you control have haste.

Counter target spell. Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Swirling Dragonfire deals damage to any target equal to the number of instant and sorcery cards in your graveyard.

Flying
When Swooping Razorbeak enters, you may return another permanent you control to its owner's hand.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
Sword Dance deals 3 damage to target attacking or blocking creature. If you're in a renaissance, Sword Dance deals 5 damage to that creature instead.

Enchant creature
Enchanted creature gets +2/+0 and has first strike.

Harness (You may tap a creature you control as you cast this spell. If you do, reduce this spell's mana cost by that creature's power.)
Put two +1/+1 counters on target creature. If this spell was harnessed, also put a +1/+1 counter on the creature that harnessed it.

Sycophantic Aristocrat gets +2/+1 as long as you control another Noble.

Vigilance
Whenever a legendary creature you control enters, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)