At the beginning of combat on your turn, if you control a legendary Assassin, Brotherhood Spy gets +1/+0 until end of turn and can't be blocked this turn.
"We need to stop Starrick and return London to the people who built it in the first place." —Jayadeep Mir
When Headsplitter enters, create a 1/1 black Assassin creature token with menace, then attach Headsplitter to it. Equipped creature gets +1/+0. Equip {2}
Choose one or both — • Return target creature to its owner's hand. • Target player searches their library and/or graveyard for a card named Ezio, Blade of Vengeance, reveals it, and puts it into their hand. If they search their library this way, they shuffle.
When Raven Clan War-Axe enters, you may search your library and/or graveyard for a card named Eivor, Battle-Ready, reveal it, and put it into your hand. If you search your library this way, shuffle. Equipped creature gets +2/+0 and has trample. Equip {2}