Flash

When this creature enters, for each graveyard with an instant or sorcery card in it, exile target instant or sorcery card from that graveyard. If two or more cards are exiled this way, choose one of them at random and copy it. You may cast the copy without paying its mana cost.

Whenever you cast an instant or sorcery spell from your hand, exile that card with a dream counter on it instead of putting it into your graveyard as it resolves.

Whenever this creature attacks, you may cast a spell from among cards you own in exile with dream counters on them without paying its mana cost.

Void — When this creature enters, if a nonland permanent left the battlefield this turn or a spell was warped this turn, exile up to one target instant or sorcery card with mana value 2 or less from your graveyard. Copy it. You may cast the copy without paying its mana cost.

Haste

Tribute 2 (As this creature enters, an opponent of your choice may put two +1/+1 counters on it.)

When this creature enters, if tribute wasn't paid, you may cast an instant or sorcery spell from your hand without paying its mana cost.

Menace (This creature can't be blocked except by two or more creatures.)

When this creature enters, you may cast target instant or sorcery card with mana value 3 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

Double strike

Whenever this creature deals combat damage to a player, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

When this creature enters, target opponent reveals their hand. You may cast an instant or sorcery spell from among those cards without paying its mana cost.

When this creature enters, exile up to one target instant or sorcery card from your graveyard. You may cast that card until the end of your next turn. (You still pay its costs. Timing rules still apply.)

Haste

, : Exile target instant or sorcery card from your graveyard.

, , Sacrifice this creature: Cast any number of cards exiled with this creature without paying their mana costs.

Afflict 4 (Whenever this creature becomes blocked, defending player loses 4 life.)

Whenever this creature attacks and isn't blocked, you may cast an instant or sorcery spell from your hand without paying its mana cost.

At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell.

At the beginning of your upkeep, each player exiles cards from the top of their library until they exile a nonland card. An opponent chooses a nonland card exiled this way. You may cast up to two spells from among the other cards exiled this way without paying their mana costs.

Sketch and Lore — , : Target opponent exiles cards from the top of their library until they exile an instant, sorcery, or creature card. You may cast that card without paying its mana cost. If you cast a creature spell this way, it gains haste and "At the beginning of the end step, sacrifice this creature." Activate only as a sorcery.

Haste

Whenever you cast an instant or sorcery spell, create a token that's a copy of this creature. Exile that token at the beginning of the next end step.

Instant and sorcery spells you control have lifelink.

At the beginning of your upkeep, exile an instant or sorcery card at random from your graveyard. You may cast it this turn. If a spell cast this way would be put into your graveyard, exile it instead.

Flying

When this creature enters, you may return target instant or sorcery card with a cycling ability from your graveyard to your hand.

At the beginning of each end step, if you cycled two or more cards this turn, return this card from your graveyard to your hand.

At the beginning of your upkeep, sacrifice The Great Juggernaut unless you discard a card.

Whenever The Great Juggernaut attacks, shuffle your library then exile the top card of your library. You may play that card without paying its mana cost this turn.

Enlist

Whenever this creature attacks, look at the top X cards of your library, where X is this creature's power. You may exile an instant or sorcery card with mana value X or less 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.