RMS Titanic's crew ability by tapping any number of creatures with power 3 or greater, causing it to become an artifact creature until end of turn.
Activate
Assault Suit's equip ability by paying ({3} magic symbol) , attaching it to
RMS Titanic.
Declare
Hellkite Charger and
RMS Titanic as attackers, triggering
Hellkite Charger.
Resolve the
Hellkite Charger trigger, causing you to pay ({5} magic symbol) ({R} magic symbol) ({R} magic symbol) to untap all attacking creatures you control and to get an additional combat phase after this one.
Deal combat damage to an opponent using
RMS Titanic, triggering its ability, causing you to not sacrifice it due to