Flying

Rishadan Airship can block only creatures with flying.

When Rishadan Cutpurse enters, each opponent sacrifices a permanent unless they pay .

When Rishadan Footpad enters, each opponent sacrifices a permanent unless they pay .

: Add .

, : Tap target land.

Draw cards equal to the greatest power among creatures you control.

You may cast a spell with mana value 5 or less from your hand without paying its mana cost.

Creatures you control have haste.

Legendary creatures you control get +1/+0.

Lands don't untap during their controllers' untap steps.

At the beginning of each player's upkeep, that player untaps a land they control.

Haste

Whenever Risona, Asari Commander deals combat damage to a player, if it doesn't have an indestructible counter on it, put an indestructible counter on it.

Whenever combat damage is dealt to you, remove an indestructible counter from Risona.

Whenever a creature or enchantment you control enters this turn, draw a card.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Kicker (You may pay an additional as you cast this spell.)

Create a token that's a copy of target creature. If this spell was kicked, create five of those tokens instead.

Discard any number of cards at random. Creatures you control get +1/+0 until end of turn for each card discarded this way.

Discard any number of cards. Counter target spell unless its controller pays for each card discarded this way.

Flying

Whenever Rith, the Awakener deals combat damage to a player, you may pay . If you do, choose a color, then create a 1/1 green Saproling creature token for each permanent of that color.

Choose one —

• Destroy target nonbasic land.

• Create three 1/1 green Saproling creature tokens.

• Prevent all damage a source of your choice would deal this turn.

Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, Ritual Guardian gains lifelink until end of turn.

You gain 4 life.

Draw a card.

Destroy all creatures with mana value 3 or less.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

If a land is tapped for mana, it produces colorless mana instead of any other type.

Exile target creature card from your graveyard. Create a black Zombie creature token. Its power is equal to that card's power and its toughness is equal to that card's toughness.

Choose two target creatures that share no creature types. Those creatures fight each other. (Each deals damage equal to its power to the other.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

River Darter can't be blocked by Dinosaurs.

Vigilance

When River Herald Guide enters, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

Put a +1/+1 counter on target creature and a +1/+1 counter on up to one target Merfolk.

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

Imprint — Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves.

At the beginning of your upkeep, if there are four or more cards exiled with River Song's Diary, choose one of them at random. You may cast it without paying its mana cost.

: Add .

If was spent to cast this spell, return up to one target creature to its owner's hand. If was spent to cast this spell, target player reveals their hand, you choose a nonland card from it, then that player discards that card. (Do both if was spent.)

When Riverwise Augur enters, draw three cards, then put two cards from your hand on top of your library in any order.

Choose one —

• Target opponent sacrifices a creature or planeswalker they control with the highest mana value among creatures and planeswalkers they control.

• Exile the top three cards of your library. Until your next end step, you may play those cards.

• Exile target player's graveyard.

Menace

When Riveteers Provocateur enters the battlefield, choose a creature card in your hand without blitz. It perpetually gains blitz. The blitz cost is equal to its mana cost.

Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

When Rix Maadi Reveler enters, discard a card, then draw a card. If Rix Maadi Reveler's spectacle cost was paid, instead discard your hand, then draw three cards.

Flying, trample

When RMS Titanic deals combat damage to a player, sacrifice it and create that many Treasure tokens.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Choose one —

• Return target permanent card from your graveyard to your hand.

• Put your commander into your hand from the command zone.

Entwine (Choose both if you pay the entwine cost.)

Flying, trample

When Roalesk, Apex Hybrid enters, put two +1/+1 counters on another target creature you control.

When Roalesk dies, proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Ward

As Roaming Throne enters, choose a creature type.

Roaming Throne is the chosen type in addition to its other types.

If a triggered ability of another creature you control of the chosen type triggers, it triggers an additional time.

If you control a Forest, each blocked creature gets +2/+2 until end of turn.

Splice onto Arcane—An opponent gains 5 life. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Creature tokens you control have haste.

Whenever one or more creatures attack, you may pay . If you do, creatures attacking your opponents and/or planeswalkers they control get +2/+0 until end of turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I — Create two 3/3 green Dinosaur creature tokens.

II — Roar of the Fifth People gains "Creatures you control have ‘: Add , , or .'"

III — Search your library for a Dinosaur card, reveal it, put it into your hand, then shuffle.

IV — Dinosaurs you control gain double strike and trample until end of turn.

Create a 6/6 green Wurm creature token.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When you unlock this door, this Room deals damage equal to the number of cards in your hand to target creature an opponent controls.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Whenever Roaring Slagwurm attacks, tap all artifacts.

Casualty 1 (As you cast this spell, you may sacrifice a creature with power 1 or greater. When you do, copy this spell.)

Exile the top two cards of your library. You may play those cards this turn.

Vigilance

Robaran Mercenaries has all activated abilities of all legendary creatures you control.

Whenever equipped creature deals combat damage to a player, you draw that many cards.

Equip

Equip Shaman, Warlock, or Wizard

When Robo-Piñata dies, choose one —

• You get .

• You may put a sticker on a nonland permanent you own.

Roc Hatchling enters with four shell counters on it.

At the beginning of your upkeep, remove a shell counter from Roc Hatchling.

As long as Roc Hatchling has no shell counters on it, it gets +3/+2 and has flying.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Rock Hydra enters with X +1/+1 counters on it.

For each 1 damage that would be dealt to Rock Hydra, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage.

: Prevent the next 1 damage that would be dealt to Rock Hydra this turn.

: Put a +1/+1 counter on Rock Hydra. Activate only during your upkeep.

: Rockcaster Platoon deals 2 damage to each creature with flying and each player.