As Mysterious Cataract enters, you may pay 2 life. If you don't, Mysterious Cataract enters tapped. {T}, Sacrifice Mysterious Cataract: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.
(As you complete a condition, decode it. After all are decoded, you solve the mystery and transform this.) When Mystery of the Crashed Craft enters, create two 1/1 red Alien creature tokens with “This creature can't block.” {MG}—You cast an instant spell. {MG}—You cast a sorcery spell.
Search your library for up to two cards with different names and reveal them. Target opponent chooses one of those cards. Put the chosen card into your graveyard and the rest into your hand. Then shuffle.
I, II — Look at the top four cards of your library. You may reveal a permanent card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. Discovery — At the beginning of your end step, you may put a permanent card from your hand onto the battlefield.
{R}, Sacrifice Nacatl Skirmisher: Destroy target artifact. Stampede — Whenever Nacatl Skirmisher and a creature with greater power attack, creatures you control get +1/+0 until end of turn.
[+1]: Copy the next spell you cast this turn. You may choose new targets for the copy. [–3]: Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard. [–8]: You get an emblem with “You may cast spells without paying their mana costs.”
As Nebula of Empty Gold enters, choose two or more colors. You lose life equal to the number of colors chosen this way. {T}: Add one mana of any of the chosen colors.
Choose a creature card name. Each player sacrifices a creature, then each player who controls a creature with the chosen name gets a poison counter. Draw a card.
“I don't know what's more insulting— that you thought I wouldn't see that coming, or that you thought it would actually work.” —La of the Highpoint Three
Whenever Neon Claw Knight enters or attacks, choose one. Create a Function token with that effect. (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.) • This spell can't be countered. • This spell costs {R} less to cast. • If this spell would deal damage to a permanent or player, it deals that much damage plus 1 instead.
Enchant opponent Enchanted player plays with the top card of their library revealed. You may cast the top card of enchanted player's library, and you may spend mana as though it were mana of any type to cast it.
As New Divide enters, you may pay 2 life. If you don't, it enters tapped. {T}, Sacrifice New Divide: Search your library for a basic land card, put it onto the battlefield, then shuffle.
If you would choose one or more modes, you may choose an additional mode. (Modal spells and abilities are indicated by • listed modes.) {1}, {T}: Add one mana of any color. {6}, {T}: Add {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}.