Rendelai, lord of hell

haste, vigilance, flying, trample
{2}{b}: rendelai, lord of hell loses trample
and gains deathtouch until end of turn.
activate this ability only any time during
the opponent's turn.
if Rendelai, lord of hell, Rendelai's assassin,
and Feladi, warrior of the lord are on the
battlefield, Rendelai, lord of hell gains +X/+X
where X is the power and toughness
of those 2 creatures.