
Courageous Outrider | Creature | Human Scout | When Courageous Outrider enters the battlefield, look at the top four cards of your library. You may reveal a Human card from among them and put it into your hand. Put the rest on the bottom of your library in any order. | Ryan Alexander Lee

Drogskol Shieldmate | Creature | Spirit Soldier | Flash (You may cast this spell any time you could cast an instant.)
When Drogskol Shieldmate enters the battlefield, other creatures you control get +0/+1 until end of turn. | Nils Hamm

Extricator of Sin | Creature | Human Cleric | When Extricator of Sin enters the battlefield, you may sacrifice another permanent. If you do, create a 3/2 colorless Eldrazi Horror creature token.
Delirium — At the beginning of your upkeep, if there are four or more card types among cards in your graveyard, transform Extricator of Sin. | Craig J Spearing

Geist of the Lonely Vigil | Creature | Spirit Cleric | Defender, flying
Delirium — Geist of the Lonely Vigil can attack as though it didn't have defender as long as there are four or more card types among cards in your graveyard. | Ryan Yee

Lone Rider | Creature | Human Knight | First strike, lifelink
At the beginning of the end step, if you gained 3 or more life this turn, transform Lone Rider. | Daarken

Subjugator Angel | Creature | Angel | Flying
When Subjugator Angel enters the battlefield, tap all creatures your opponents control. | Lius Lasahido