Commander

Five decks or more

Strefan, Maurer Progenitor

Twelve public Commander decks on mtg-agents are led by Strefan, Maurer Progenitor, and twelve different people built them. What sets them apart: seven of the twelve run Markov Enforcer, and eight run Anje, Maid of Dishonor. Strefan is one of 101 Rakdos commanders here, which together lead 671 decks.

Strefan, Maurer Progenitor card
Legendary Creature — Vampire Noble3/2Rakdos

Flying

At the beginning of your end step, create a Blood token for each player who lost life this turn.

Whenever Strefan attacks, you may sacrifice two Blood tokens. If you do, you may put a Vampire card from your hand onto the battlefield tapped and attacking. It gains indestructible until end of turn.