Street Spasm deals X damage to target creature without flying you don't control.
Overload (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Protection from white
: Stromgald Crusader gains flying until end of turn.
: Stromgald Crusader gets +1/+0 until end of turn.

Flying
Shadow (This creature can block or be blocked by only creatures with shadow.)
: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn.

Flying
Stronghold Zeppelin can block only creatures with flying.

When Student of Elements has flying, flip it.

Flying
Sturmgeist's power and toughness are each equal to the number of cards in your hand.
Whenever Sturmgeist deals combat damage to a player, draw a card.

Flying
When Subjugator Angel enters the battlefield, tap all creatures your opponents control.

Flying
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
Other creatures you control have exalted. (If a creature has multiple instances of exalted, each triggers separately.)

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Subterranean Shambler enters the battlefield or leaves the battlefield, it deals 1 damage to each creature without flying.

Protection from red
: Subterranean Spirit deals 1 damage to each creature without flying.

Subterranean Tremors deals X damage to each creature without flying. If X is 4 or more, destroy all artifacts. If X is 8 or more, create an 8/8 red Lizard creature token.

Delve (Each card you exile from your graveyard while casting this spell pays for .)
Flying

Flying
Sun-Crested Pterodon has vigilance as long as you control another Dinosaur.

Flying, first strike, vigilance, lifelink

Flying
When Sunblast Angel enters the battlefield, destroy all tapped creatures.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Flying
: Sunmane Pegasus gains vigilance and lifelink until end of turn.

Kicker and/or (You may pay an additional and/or as you cast this spell.)
When Sunscape Battlemage enters the battlefield, if it was kicked with its kicker, destroy target creature with flying.
When Sunscape Battlemage enters the battlefield, if it was kicked with its kicker, draw two cards.

Flying
Whenever an opponent casts a spell, put a +1/+1 counter on Sunscorch Regent and you gain 1 life.

Flying