Pilgrim of Heartbeats

Conduit (When you cast your first conduit spell each game, its color becomes your conduit color.)
Whenever a creature you control of your conduit color dies, add {r}. This mana
doesn't empty as steps and phases end.
{4}{r}{r}{r}, {t}: Pilgrim of Heartbeats deals damage to each opponent equal to half that player's lifetotal, rounded down.