Senjuro Rengoku

All Demon Slayers have Haste.
Whenever Senjuro deals combat damage to a
player, put a legend counter on Rengoku's
Remembrance.
{6}{r}{r}{r}{r}, Sacrifice Rengoku's Remembrance: Transform Senjuro Rengoku. Activate this only if
there are 10 or more legend counter on
Rengoku's Remembrance.