Urza, Lord High Artificer (Profile Showcase) IMA return this card from your

return this card from your graveyard to your hand

exile up to one target Assassin creature card from your graveyard with a memory counter on it

(If an enchanted permanent you control would be destroyed

Sab-Sunen can't attack or block unless it has an even number of counters on it

Enchant creature you control

Urza, Lord High Artificer (Profile Showcase) IMA return this card from yourWhen 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 {U}. {5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.