, : Return target artifact card from your graveyard to your hand.

Prevent all damage that would be dealt to Argothian Treefolk by artifact sources.

, , Sacrifice Astrolabe: Add two mana of any one color. Draw a card at the beginning of the next turn's upkeep.

, : Put a charge counter on Blue Mana Battery.

, Remove any number of charge counters from Blue Mana Battery: Add , then add an additional for each charge counter removed this way.

, : Add one mana of any color.

Clockwork Steed enters with four +1/+0 counters on it.

Clockwork Steed can't be blocked by artifact creatures.

At end of combat, if Clockwork Steed attacked or blocked this combat, remove a +1/+0 counter from it.

, : Put up to X +1/+0 counters on Clockwork Steed. This ability can't cause the total number of +1/+0 counters on Clockwork Steed to be greater than four. Activate only during your upkeep.

All creatures have haste.

At the beginning of each player's upkeep, Copper Tablet deals 1 damage to that player.

, Discard a card at random: Target creature gets +2/+2 until end of turn.

Whenever a player casts a blue spell, you may pay . If you do, you gain 1 life.

Destroy target artifact or enchantment.

Put any number of target artifact cards from target player's graveyard on top of their library in any order.

: Choose target attacking or blocking creature whose controller controls an Island. Dwarven Sea Clan deals 2 damage to that creature at end of combat. Activate only before the end of combat step.

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

: Tap target green creature.

: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on . If you do, you may cast that card face down as a 2/2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage, or becomes tapped. Activate only as a sorcery.

Whenever Joven's Ferrets attacks, it gets +0/+2 until end of turn.

At end of combat, tap all creatures that blocked Joven's Ferrets this turn. They don't untap during their controller's next untap step.

Whenever a player casts a blue spell, you may pay . If you do, untap target permanent.

, : Put a matrix counter on target creature and that creature gains "Remove a matrix counter from this creature: Regenerate this creature." Activate only during your upkeep.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

At the beginning of your upkeep, Mishra's War Machine deals 3 damage to you unless you discard a card. If Mishra's War Machine deals damage to you this way, tap it.

Flying

You may choose not to untap Phyrexian Gremlins during your untap step.

: Tap target artifact. It doesn't untap during its controller's untap step for as long as Phyrexian Gremlins remains tapped.

Flying

: Roterothopter gets +1/+0 until end of turn. Activate no more than twice each turn.

When you control no Islands, sacrifice Seasinger.

You may choose not to untap Seasinger during your untap step.

: Gain control of target creature whose controller controls an Island for as long as you control Seasinger and Seasinger remains tapped.

: Put the top card of your graveyard on the bottom of your library.

Tap all blocking creatures. Prevent all combat damage that would be dealt this turn. Each attacking creature and each blocking creature doesn't untap during its controller's next untap step.

Spells you cast cost less to cast.

When Time Elemental attacks or blocks, at end of combat, sacrifice it and it deals 5 damage to you.

, : Return target permanent that isn't enchanted to its owner's hand.

: Urza's Avenger gets -1/-1 and gains your choice of banding, flying, first strike, or trample until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Enchant artifact

At the beginning of the upkeep of enchanted artifact's controller, Warp Artifact deals 1 damage to that player.