Urza, Lord High Artificer (Profile Showcase) IMA Enchant creature you control

Enchant creature you control

exile target instant or sorcery card from that graveyard

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

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

Urza, Lord High Artificer (Profile Showcase) IMA Enchant creature you controlWhen 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.