The Revelations of Ezio is pretty narrow and wants to be in an Assassin deck, and as a longtime Magic player, I smile at Chapter Is callback to Royal Assassin killing a tapped creature
Since he essentially gains +3/+3 each time he takes damage, and gives you three rad counters at the same time, any repeatable ping effect can grow Strong to obscene proportions and Mill your entire deck, opening the doors for a Thassas Oracle win the next turn
The best of these options is Cultist of the Absolute
Load your deck with instants and youll consistently generate extra copies and extra damage
So even in the deep pool of Zombie one-drops, this new guy makes a very big splash
Even something like Urza's Command can be very powerful if the correct critical mass of playable artifacts is hit, and having access to counterspells to stop Farewell is also big game