Cast a spell

• Reflections of LittjaraWhenever you cast a spell of the chosen type, copy that spell.
• Thousand-Year StormWhenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell you've cast before it this turn. you may choose new targets for the copies.
• Echoes of EternityWhenever you cast a colorless spell, copy it. you may choose new targets for the copy.

• Inexorable TideWhenever you cast a spell, proliferate.
• Forgotten AncientWhenever a player casts a spell, you may put a +1/+1 counter on this creature.
• Dreamtide WhaleWhenever a player casts their second spell each turn, proliferate.

Then: Become tapped, A creature enters the battlefield, Create a token

• Forgotten AncientWhenever a player casts a spell, you may put a +1/+1 counter on this creature.
• Taurean MaulerWhenever an opponent casts a spell, you may put a +1/+1 counter on this creature.
• Managorger HydraWhenever a player casts a spell, put a +1/+1 counter on this creature.

• Talrand, Sky SummonerWhenever you cast an instant or sorcery spell, create a 2/2 blue drake creature token with flying.
• Storm-Kiln ArtistWhenever you cast or copy an instant or sorcery spell, create a treasure token.
• Young PyromancerWhenever you cast an instant or sorcery spell, create a 1/1 red elemental creature token.

Then: Enter the battlefield, A creature enters the battlefield, permanents to sacrifice

• Forensic GadgeteerWhenever you cast an artifact spell, investigate.
• Storm-Kiln ArtistWhenever you cast or copy an instant or sorcery spell, create a treasure token.
• Monologue TaxWhenever an opponent casts their second spell each turn, you create a treasure token.

Then: Leave the battlefield, Sacrifice a permanent, Become tapped

• Displacer KittenWhenever you cast a noncreature spell, exile up to one target nonland permanent you control, then return that card to the battlefield under its owner's control.
• Talrand, Sky SummonerWhenever you cast an instant or sorcery spell, create a 2/2 blue drake creature token with flying.
• Young PyromancerWhenever you cast an instant or sorcery spell, create a 1/1 red elemental creature token.

Then: Create a token, Put a +1/+1 counter, Put a counter

• Displacer KittenWhenever you cast a noncreature spell, exile up to one target nonland permanent you control, then return that card to the battlefield under its owner's control.
• Wiccan, Rising MagicianWhenever you cast a noncreature spell, exile another target nonland, nontoken permanent. return that card to the battlefield under its owner's control at the beginning of the next end step.
• Oji, the Exquisite BladeWhenever you cast your second spell each turn, exile up to one target creature you control, then return it to the battlefield under its owner's control.

Then: Leave the battlefield, Return a card from a graveyard, A creature enters the battlefield

• Bontu's MonumentWhenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.
• Aetherflux ReservoirWhenever you cast a spell, you gain 1 life for each spell you've cast this turn.
• Kambal, Consul of AllocationWhenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.

Then: Put a +1/+1 counter, Put a counter

• Conduit of Worlds{T}: choose target nonland permanent card in your graveyard. if you haven't cast a spell this turn, you may cast that card. if you do, you can't cast additional spells this turn. activate only as a sorcery.
• Muldrotha, the GravetideDuring each of your turns, you may play a land and cast a permanent spell of each permanent type from your graveyard.
• Exploration BroodshipOnce during each of your turns, you may cast a permanent spell from your graveyard by sacrificing a land in addition to paying its other costs.

• Nashi, Moon Sage's ScionWhenever ~ deals combat damage to a player, exile the top card of each player's library. until end of turn, you may play one of those cards. if you cast a spell this way, pay life equal to its mana value rather than paying its mana cost.
• Ragavan, Nimble PilfererWhenever ~ deals combat damage to a player, create a treasure token and exile the top card of that player's library. until end of turn, you may cast that card.
• Tinybones, the PickpocketWhenever ~ deals combat damage to a player, you may cast target nonland permanent card from that player's graveyard, and mana of any type can be spent to cast that spell.

• Grenzo, Havoc RaiserWhenever a creature you control deals combat damage to a player, choose one —
• Surge to VictoryExile target instant or sorcery card from your graveyard. creatures you control get +x/+0 until end of turn, where x is that card's mana value. whenever a creature you control deals combat damage to a player this turn, copy the exiled card. you may cast the copy without paying its mana cost.
• The Key to the VaultWhenever equipped creature deals combat damage to a player, look at that many cards from the top of your library. you may exile a nonland card from among them. put the rest on the bottom of your library in a random order. you may cast the exiled card without paying its mana cost.

• Containment ConstructWhenever you discard a card, you may exile that card from your graveyard. if you do, you may play that card this turn.
• Oskar, Rubbish ReclaimerWhenever you discard a nonland card, you may cast it from your graveyard.
• Conspiracy TheoristWhenever you discard one or more nonland cards, you may exile one of them from your graveyard. if you do, you may cast it this turn.

• Breeches, Brazen PlundererWhenever one or more pirates you control deal damage to your opponents, exile the top card of each of those opponents' libraries. you may play those cards this turn, and you may spend mana as though it were mana of any color to cast those spells.
• Virtue of Courage // Embereth BlazeWhenever a source you control deals noncombat damage to an opponent, you may exile that many cards from the top of your library. you may play those cards this turn.
• Thor, Guardian of MidgardWhenever a source you control deals noncombat damage to an opponent, you may exile that many cards from the top of your library. you may play those cards this turn.

• Long-Range Sensor{1}, remove two charge counters from this artifact: discover 4. activate only as a sorcery.
• Brain in a Jar{1}, {T}: put a charge counter on this artifact, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on this artifact from your hand without paying its mana cost.
• Ice Cauldron{X}, {T}: you may exile a nonland card from your hand. you may cast that card for as long as it remains exiled. put a charge counter on this artifact and note the type and amount of mana spent to pay this activation cost. activate only if there are no charge counters on this artifact.