La saga d'Urza

At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells.

{5}, {T}: Shuffle your library, then reveal the top card. Until end of turn, for as long as that card remains on top of your library, play with the...

At the beginning of your upkeep, you may put a soot counter on Smokestack. At the beginning of each player's upkeep, that player sacrifices a perma...

{2}, {T}, Sacrifice Pit Trap: Destroy target attacking creature without flying. It can't be regenerated.

Phyrexian Colossus doesn't untap during your untap step. Pay 8 life: Untap Phyrexian Colossus. Phyrexian Colossus can't be blocked except by three ...

At the beginning of each player's upkeep, return to its owner's hand each creature that player controls with power greater than the number of cards...

Defender (This creature can't attack.) {3}: Mobile Fort gets +3/-1 until end of turn and can attack this turn as though it didn't have defender. Ac...

At the beginning of your upkeep, you may put a petal counter on Lotus Blossom. {T}, Sacrifice Lotus Blossom: Add X mana of any one color, where X i...

Whenever a creature dies, if another creature is on the battlefield, return the first card to the battlefield under its owner's control at the begi...

{0}: Hopping Automaton gets -1/-1 and gains flying until end of turn.

At the beginning of your draw step, draw an additional card. At the beginning of your end step, discard your hand.

Cycling abilities you activate cost up to {2} less to activate.

You may choose not to untap Endoskeleton during your untap step. {2}, {T}: Target creature gets +0/+3 for as long as Endoskeleton remains tapped.

{4}, Sacrifice Copper Gnomes: You may put an artifact card from your hand onto the battlefield.

{1}, Sacrifice a permanent: You gain 1 life.

{X}, {T}: Search your library for a creature card with converted mana cost X or less, reveal it, and put it into your hand. Then shuffle your library.

When Cathodion dies, add {C}{C}{C}.