Kelwarin, Hero of Legend

Protection from black
When Kelwarin deals combat damage to a player,
draw a card and untap up to two lands.
{2}: Kelwarin gets +1/+0 until end of turn. If its
power is 4 or greater, it gains lifelink until end of
turn. If its power is 6 or greater, it gains trample
until end of turn. If its power is 8 or greater, it
gains indestructible until end of turn.