Asura Path

Metalcraft (As long as you control three or
more creatures, Asura Path has trample and reach.)
{4}{t}: Choose a player, Asura Path targets all creatures, tokens, and planeswalker they control
and do 10 damage to all. Exile Asura Path.
As long as Asura Path's Metalcraft ability is activated, Asura Path becomes unblockable when dealing combat damage.