This green, blue, and red dragon has an incredibly powerful ability to give you a token copy of any Dragon that enters the battlefield under your control, so long as its not already a token
Liliana of the Veil For a long time, Liliana of the Veil was a $40-50 staple card across all Magic formats, and now it sits around $10
Doctor's companion (You can have two commanders if the other is the Doctor.) If a triggered ability of a Doctor you control triggers, that ability triggers an additional time
There's a lot here, but basically, if you run basics, or burn, or damage or want to shut down life gain at your table, enter this Win Con on a stick like Gray Merchant of Asphodel, with less set up needed, but still few colors to minimize its damage to you
"Did I hit a home run this time
Few cards can captivate and horrify as effectively as Subtlety does