Enchant artifact or enchantment
At the beginning of your upkeep, choose one —
• Destroy enchanted permanent.
• You gain 2 life.

, : Return target Rebel permanent card with converted mana cost 5 or less from your graveyard to the battlefield.

Kicker (You may pay an additional as you cast this spell.)
Vanishing 2 (This creature enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
If Ravaging Riftwurm was kicked, it enters the battlefield with three additional time counters on it.

Return target permanent to its owner's hand. Exile Reality Strobe with three time counters on it.
Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

Choose any target. Scry 3, then reveal the top card of your library. Riddle of Lightning deals damage equal to that card's converted mana cost to that permanent or player. (To scry 3, look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

, Remove a time counter from a permanent you control or suspended card you own: Rift Elemental gets +2/+0 until end of turn.

When Riftsweeper enters the battlefield, choose target face-up exiled card. Its owner shuffles it into their library.

At the beginning of each player's draw step, that player draws an additional card.
Each player may play an additional land on each of their turns.

: Add . If you played a land this turn, add instead.

Whenever another creature enters the battlefield, exile Saltskitter. Return Saltskitter to the battlefield under its owner's control at the beginning of the next end step.

, Sacrifice Samite Censer-Bearer: Prevent the next 1 damage that would be dealt to each creature you control this turn.

: Sarcomite Myr gains flying until end of turn.
, Sacrifice Sarcomite Myr: Draw a card.

Flying
: Scourge of Kher Ridges deals 2 damage to each creature without flying.
: Scourge of Kher Ridges deals 6 damage to each other creature with flying.

The next creature card you play this turn can be played as though it had flash.
Draw a card.

Enchant creature
: Tap enchanted creature.
: Untap enchanted creature.

Flash (You may cast this spell any time you could cast an instant.)
When Seht's Tiger enters the battlefield, you gain protection from the color of your choice until end of turn. (You can't be targeted, dealt damage, or enchanted by anything of the chosen color.)

Trample
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 Shah of Naar Isle's echo cost is paid, each opponent may draw up to three cards.

At the beginning of each opponent's upkeep, that player reveals the top card of their library. If it's a creature card, the player puts the card into their graveyard and Shapeshifter's Marrow becomes a copy of that card. (If it does, it loses this ability.)

Flying
Whenever Shimian Specter deals combat damage to a player, that player reveals their hand. You choose a nonland card from it. Search that player's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles their library.

When Shivan Sand-Mage enters the battlefield, choose one —
• Remove two time counters from target permanent or suspended card.
• Put two time counters on target permanent with a time counter on it or suspended card.
Suspend 4— (Rather than cast this card from your hand, you may pay and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)