Keyword: Kicker

Kicker (You may pay an additional as you cast this spell.)
Flying
When Waterspout Elemental enters the battlefield, if it was kicked, return all other creatures to their owners’ hands and you skip your next turn.

Kicker—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell.)
Prevent all combat damage target creature would deal this turn. If this spell was kicked, prevent all combat damage another target creature would deal this turn.

Kicker—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell.)
Return target nonland permanent to its owner’s hand. If this spell was kicked, return another target nonland permanent to its owner’s hand.

Kicker—Return a creature you control to its owner’s hand. (You may return a creature you control to its owner’s hand in addition to any other costs as you cast this spell.)
If Arctic Merfolk was kicked, it enters the battlefield with a +1/+1 counter on it.

Kicker and/or (You may pay an additional and/or as you cast this spell.)
When Thornscape Battlemage enters the battlefield, if it was kicked with its kicker, it deals 2 damage to any target.
When Thornscape Battlemage enters the battlefield, if it was kicked with its kicker, destroy target artifact.

Kicker—Sacrifice two lands. (You may sacrifice two lands in addition to any other costs as you cast this spell.)
Target player discards two cards. If this spell was kicked, that player discards three cards instead.

Kicker—, Discard a creature card. (You may pay and discard a creature card in addition to any other costs as you cast this spell.)
If Dralnu’s Pet was kicked, it enters the battlefield with flying and with X +1/+1 counters on it, where X is the discarded card’s converted mana cost.

Kicker and/or (You may pay an additional and/or as you cast this spell.)
When Nightscape Battlemage enters the battlefield, if it was kicked with its kicker, return up to two target nonblack creatures to their owners’ hands.
When Nightscape Battlemage enters the battlefield, if it was kicked with its kicker, destroy target land.

Kicker (You may pay an additional as you cast this spell.)
Target player can’t cast spells this turn. If this spell was kicked, creatures can’t attack this 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.

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

Kicker—Sacrifice a creature. (You may sacrifice a creature in addition to any other costs as you cast this spell.)
Search your library for a basic land card, put that card onto the battlefield, then shuffle your library. If this spell was kicked, instead search your library for up to two basic land cards, put them onto the battlefield, then shuffle your library.

Kicker—Pay 3 life. (You may pay 3 life in addition to any other costs as you cast this spell.)
If Phyrexian Scuta was kicked, it enters the battlefield with two +1/+1 counters on it.

Kicker—Sacrifice two lands. (You may sacrifice two lands in addition to any other costs as you cast this spell.)
Magma Burst deals 3 damage to any target. If this spell was kicked, it deals 3 damage to another target.

Kicker (You may pay an additional as you cast this spell.)
: Regenerate Urborg Skeleton.
If Urborg Skeleton was kicked, it enters the battlefield with a +1/+1 counter on it.

Kicker (You may pay an additional as you cast this spell.)
Draw three cards, then discard two cards. If this spell was kicked, target player discards two cards.

Kicker (You may pay an additional as you cast this spell.)
Reach (This creature can block creatures with flying.)
If Pincer Spider was kicked, it enters the battlefield with a +1/+1 counter on it.

Kicker (You may pay an additional as you cast this spell.)
Canopy Surge deals 1 damage to each creature with flying and each player. If this spell was kicked, it deals 4 damage to each creature with flying and each player instead.

Kicker (You may pay an additional as you cast this spell.)
Vodalian Serpent can’t attack unless defending player controls an Island.
If Vodalian Serpent was kicked, it enters the battlefield with four +1/+1 counters on it.

Kicker (You may pay an additional as you cast this spell.)
First strike
If Pouncing Kavu was kicked, it enters the battlefield with two +1/+1 counters on it and with haste.

Kicker (You may pay an additional as you cast this spell.)
Destroy target nonblack creature. It can’t be regenerated. If this spell was kicked, Agonizing Demise deals damage equal to that creature’s power to the creature’s controller.

Kicker (You may pay an additional as you cast this spell.)
Destroy target artifact if its converted mana cost is 2 or less. If this spell was kicked, destroy that artifact if its converted mana cost is 5 or less instead.

Kicker (You may pay an additional as you cast this spell.)
Trample, haste
At the beginning of the end step, if Skizzik wasn’t kicked, sacrifice it.

Kicker (You may pay an additional as you cast this spell.)
When Urborg Emissary enters the battlefield, if it was kicked, return target permanent to its owner’s hand.

Kicker (You may pay an additional as you cast this spell.)
Breath of Darigaaz deals 1 damage to each creature without flying and each player. If this spell was kicked, it deals 4 damage to each creature without flying and each player instead.