Rielle, the Everwise gets +1/+0 for each instant and sorcery card in your graveyard.
Whenever you discard one or more cards for the first time each turn, draw that many cards.

When Rooting Moloch enters the battlefield, exile target card with a cycling ability from your graveyard. Until the end of your next turn, you may play that card.
Cycling (, Discard this card: Draw a card.)

Rugged Highlands enters the battlefield tapped.
When Rugged Highlands enters the battlefield, you gain 1 life.
: Add or .

Destroy all nonland permanents your opponents control.

Rumbling Rockslide deals damage to target creature equal to the number of lands you control.

Humans you control get +1/+1.
, Tap two untapped Humans you control: Tap target creature an opponent controls.

First strike
Cycling (, Discard this card: Draw a card.)
When you cycle Sanctuary Smasher, put a first strike counter on target creature you control.

: Add , , or .
Cycling (, Discard this card: Draw a card.)

Whenever you cycle a card, you may pay . When you do, Savai Thundermane deals 2 damage to target creature and you gain 2 life.

(: Add , , or .)
Savai Triome enters the battlefield tapped.
Cycling (, Discard this card: Draw a card.)

Scoured Barrens enters the battlefield tapped.
When Scoured Barrens enters the battlefield, you gain 1 life.
: Add or .

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flash
Whenever this creature deals combat damage to a player, draw a card.

When Serrated Scorpion dies, it deals 2 damage to each opponent and you gain 2 life.

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's converted mana cost.
Cycling (, Discard this card: Draw a card.)
When you cycle Shark Typhoon, create an X/X blue Shark creature token with flying.

Choose one —
• Destroy target artifact.
• Shredded Sails deals 4 damage to target creature with flying.
Cycling (, Discard this card: Draw a card.)

: Add or .
: Mill two cards.

Flying
Skycat Sovereign gets +1/+1 for each other creature you control with flying.
: Create a 1/1 white Cat Bird creature token with flying.

When Sleeper Dart enters the battlefield, draw a card.
, Sacrifice Sleeper Dart: Target creature doesn't untap during its controller's next untap step.

Flash
Whenever you cast another spell that has flash, you draw a card and each opponent loses 1 life.