La saga d'Urza

{T}: Add {C}. Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {U}.)

{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.

({T}: Add {W}.)

At the beginning of the end step, if you control no creatures, sacrifice Thran Quarry. {T}: Add one mana of any color.

({T}: Add {G}.)

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...

({T}: Add {R}.)

{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...

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

{3}: Each player puts the top two cards of their library into their graveyard.

({T}: Add {B}.)

Smoldering Crater enters the battlefield tapped. {T}: Add {R}. Cycling {2} ({2}, Discard this card: Draw a card.)

Wirecat can't attack or block if an enchantment is on the battlefield.

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.

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

When a spell or ability an opponent controls causes you to discard Metrognome, create four 1/1 colorless Gnome artifact creature tokens. {4}, {T}: ...