Flash
This spell costs {1} less to cast for each permanent with flash you control and each instant card in your graveyard.
Ward {2}

Counter target spell. Create an X/X blue and black Fish creature token, where X is the total number of permanents with flash you control and the number of instant cards in your graveyard.

Target creature you control gets +1/+1 until end of turn. Prevent all combat damage that other creatures would deal this turn.

When Rano's Slopeguard enters, you may exile cards from the top of your library until you exile a nonland card with mana value 2 or less, then put the rest on the bottom in a random order. You may cast the exiled card this turn.

Whenever you cast a spell that targets Rathomar Harrier, choose one. If Rathomar Harrier is attacking, choose both instead.
• Tap target creature you don't control.
• Create a 2/2 green Wolf creature token.

Whenever you cast a spell that targets Rathomar Herder, choose one. If Rathomar Herder is attacking, you may choose both instead.
• Create a 1/1 white Human creature token.
• Creatures you control get +1/+0 until end of turn.

Haste
Whenever you cast a spell that targets Rathomar Raider, target creature can't block this turn.

When Reaching Remnant enters, it deals 4 damage to target creature with flying you don't control.
Spellcharge 3

Return target artifact or creature card from your graveyard to the battlefield.
Flashback—{3}{B}, Sacrifice a creature.

Whenever Recurring Visions enters or you cast a spell which had its flashback cost paid, surveil 3.

Mill a card. Put a +1/+1 counter on up to one target creature. Exile up to one target card from a graveyard. You gain 1 life.
Flashback {1}{G}

Reduce to Ore deals 5 damage to target creature. If a Ruin dealt damage this way would die this turn, instead exile it and you create two Treasure tokens.

Flying
Equipped creature gets +2/+0.
Equip {2}
Spellcharge 2

When Renowned Roughrider enters or leaves the battlefield, create a 1/1 white Human creature token. Then if you control four or more creatures, put a +1/+1 counter on a creature you control.
Wander {4}{W}{W}

{T}: Add {C}.
Whenever Resting Place attacks, sacrifice it at end of combat.
Spellcharge 5

Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.

When Rib Collector enters, if it wandered, return target creature card from your graveyard to your hand.
Wander—{1}{B}, Sacrifice another creature.

Choose one —
• Exile target artifact or enchantment.
• Exile target creature you control, then return it to the battlefield under its owner's control. If that creature entering the battlefield causes any abilities to trigger, those abilities trigger an additional time.

Search your library for a card with flashback and exile it, then shuffle. You may cast that card this turn. At the beginning of your next end step, if that card is in exile, put it into your graveyard.
Flashback {U}{R}

Put two +1/+1 counters on target creature you control. It fights up to one target creature an opponent controls. You gain 4 life.

When Rotroot Hauler enters, mill three cards, then you may put a permanent card in your graveyard on top of your library.

Target creature you control gets +2/+2 and gains indestructible until end of turn. If it was the target of another spell or ability this turn, create two 1/1 white Bird creature tokens with flying.

Flashback costs you pay cost {2} less.
{R}, {T}, Discard a card: Draw a card.

{1}{R}, {T}, Discard a card: Draw a card. Scalding Crucible deals 1 damage to each opponent.
Spellcharge 5

Scry 2, then draw a card.
Flashback {4}{U}