When Urza enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control."
Tap an untapped artifact you control: Add .
: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

(: Add .)
This land enters tapped unless you control an Equipment.
, : Create a 2/2 red Dwarf creature token. This ability costs less to activate for each Equipment you control. Activate only as a sorcery.

Counter target noncreature spell. Your opponents can't cast noncreature spells this turn.

Enchant creature
Enchanted creature gets -1/-1.
When enchanted creature dies, return this card from your graveyard to the battlefield.

Whenever you cast your first spell each turn, choose an opponent at random. Vial Smasher deals damage equal to that spell's mana value to that player or a planeswalker that player controls.
Partner (You can have two commanders if both have partner.)

Converge — Exile target nonland permanent if its mana value is less than or equal to the number of colors of mana spent to cast this spell.

Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Reach
: This creature deals X damage to each creature with flying.

When this artifact enters, if it was cast, target opponent creates a token that's a copy of it.
Whenever an opponent who controls an artifact named Wedding Ring draws a card during their turn, you draw a card.
Whenever an opponent who controls an artifact named Wedding Ring gains life during their turn, you gain that much life.

This artifact enters with X charge counters on it.
Whenever a player casts a spell with mana value equal to the number of charge counters on this artifact, counter that spell.

(: Add .)

Attacking creatures you control have deathtouch.
Whenever a creature you control deals combat damage to a player, draw a card.

This spell costs less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Destroy all nonwhite creatures.

Reach (This creature can block creatures with flying.)
You may play lands from your graveyard.
If a land entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Delve (Each card you exile from your graveyard while casting this spell pays for .)
Flying
This creature enters with a +1/+1 counter on it for each instant and sorcery card exiled with it.
Whenever an instant or sorcery card leaves your graveyard, put a +1/+1 counter on this creature.

Haste
: Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step.

: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

Flying
Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying.

Whenever a nontoken creature you control deals combat damage to a player, create a token that's a copy of it, except it isn't legendary.