Lydia Frye can't be blocked by creatures with power 3 or greater.At the beginning of your end step, surveil X, where X is the number of tapped Assassins you control. (Look at the top X cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
FlashWhen Hidden Blade enters, attach it to target creature you control. If that creature is an Assassin, it gains deathtouch until end of turn.Equipped creature gets +1/+0 and has first strike.Equip
FlashWhen Hidden Blade enters, attach it to target creature you control. If that creature is an Assassin, it gains deathtouch until end of turn.Equipped creature gets +1/+0 and has first strike.Equip
When Tax Collector enters, choose one —• Tax — Until your next turn, spells your opponents cast cost more to cast.• Arrest — Detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)
When Assassin Gauntlet enters, attach it to up to one target creature you control. Tap all creatures target opponent controls.Equipped creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, draw a card, then discard a card."Equip
When Assassin Gauntlet enters, attach it to up to one target creature you control. Tap all creatures target opponent controls.Equipped creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, draw a card, then discard a card."Equip
Freerunning (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.)Search your library for up to three basic land cards and reveal them. Put two of them onto the battlefield tapped and the other into your hand, then shuffle.
During your turn, Spartan Veteran has first strike. (It deals combat damage before creatures without first strike.): Spartan Veteran gets +1/+0 until end of turn.
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)Whenever Adrestia attacks, if an Assassin crewed it this turn, draw a card. Adrestia becomes an Assassin in addition to its other types until end of turn.Crew 1