Gideon, Legion's Archon

Flying, vigilance, indestructible
Damage dealt to creatures your opponents control
doesn't get removed at end of turn.
{r/w}{r/w}{r/w}: Target creature gains triple strike until
end of turn. (Triple strike deals first-strike, regular,
and last-strike combat damage.)
{t}: Prevent up to X damage between any number
of targets, where X is Gideon's power.