mtg.wtf

As Riptide Replicator enters, choose a color and a creature type.
Riptide Replicator enters with X charge counters on it.
{4}, {T}: Create an X/X creature token of the chosen color and type, where X is the number of charge counters on Riptide Replicator.

{2}{U}{U}, Sacrifice Riptide Shapeshifter: Choose a creature type. Reveal cards from the top of your library until you reveal a creature card of that type. Put that card onto the battlefield and shuffle the rest into your library.

{2}, {T}: Shuffle target nontoken permanent you control into its owner's library.

Lands don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player untaps a land they control.

Whenever a creature you control is dealt damage, put a +1/+1 counter on it.

Discard any number of cards. Counter target spell unless its controller pays {3} for each card discarded this way.

Discard any number of cards. Search your library for up to that many basic land cards, reveal them, put them into your hand, then shuffle.

{1}, Sacrifice Rith's Attendant: Add {R}{G}{W}.

Whenever a creature you control deals combat damage to a player, you may pay {5}. If you do, create a 5/5 red Dragon creature token with flying.

Return target artifact card from your graveyard to your hand.

Enchant creature
When Ritual of Steel enters, draw a card at the beginning of the next turn's upkeep.
Enchanted creature gets +0/+2.

At the beginning of each player's upkeep, if that player controls more lands than each other player, Rivalry deals 2 damage to them.

River Delta doesn't untap during your untap step if it has a depletion counter on it.
At the beginning of your upkeep, remove a depletion counter from River Delta.
{T}: Add {U} or {B}. Put a depletion counter on River Delta.

{U}: River Merfolk gains mountainwalk until end of turn.

If you control a Forest, each blocked creature gets +2/+2 until end of turn.
Splice onto Arcane—An opponent gains 5 life.

Each player returns all artifact cards from their graveyard to the battlefield.

Choose one —
• Creatures you control get +1/+1 until end of turn.
• Untap all creatures you control.
Entwine {1}{W}

Whenever Roaring Slagwurm attacks, tap all artifacts.

Flying
Whenever Robber Fly becomes blocked, defending player discards all the cards in their hand, then draws that many cards.

Enchant creature
Enchanted creature has shroud.

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

Whenever Rock Basilisk blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

You can't cast this spell if you've played a land this turn.
You can't play lands if you've cast Rock Jockey this turn.