Khrusor, Spear of the Sun

Whenever one or more counters are placed on permanents you control, you gain that much life.
{t}: Put a +1/+1 counter on target creature you control. That creature becomes legendary
until end of turn.
At the beginning of combat, if you both own and
control Khrusor, Spear of the Sun and a land
named Gideon’s Memorial, exile them, then
meld them into Gideon, God of Life.