My Guess On The Last Two Darkin

According to bible text in terms of the horsemen of the apocalypse;

The White Horse;

Then I saw when the Lamb broke one of the seven seals, and I heard one of the four living creatures saying as with a voice of thunder, “Come.” I looked, and behold, a white horse, and he who sat on it had a bow; and a crown was given to him, and he went out conquering and to conquer.

This is

The Red horse;

When He broke the second seal, I heard the second living creature saying, “Come.” And another, a red horse, went out; and to him who sat on it, it was granted to take peace from the earth, and that men would slay one another; and a great sword was given to him.

This is

The next One is the support champion of the Darkin, since we have a top, adc, and jungler. The Black Horse.

The Black Horse;

When He broke the third seal, I heard the third living creature saying, “Come.” I looked, and behold, a black horse; and he who sat on it had a pair of scales in his hand. And I heard something like a voice in the center of the four living creatures saying, “A quart of wheat for a denarius, and three quarts of barley for a denarius; but do not damage the oil and the wine.”

I imagine It will be a champion with scales for a weapon or something of that theme. Sounds actually like a support from the get go.

The Pale Horse;

When the Lamb broke the fourth seal, I heard the voice of the fourth living creature saying, “Come.” I looked, and behold, an ashen horse; and he who sat on it had the name Death; and Hades was following with him. Authority was given to them over a fourth of the earth, to kill with sword and with famine and with pestilence and by the wild beasts of the earth.

This is

The fifth Darkin is a bit of a guess. Some say the last horseman is a few things, but the most likely guess is providence, Birth and renewal. It will probably be a mid laner. Sort of like new start after the end of the world. The first 4 destroy and this one renews the world.