Its Aftermath mode is a worse ExsanguinateExsanguinate, but it functions well if you have mana to spare or just want to trigger Strefan, Maurer ProgenitorStrefan, Maurer Progenitor's Blood-creating ability
This means it powers up until the end of the turn when Im casting spells (a little like Prowess), but with the added bonus that big spells (of five or more mana) will create a token of it, which will also have haste and be ready to hit hard
Modal Dual Faced Cards (MDFCs) Modal double-faced cards are tricky to balance, especially with the inclusion of so many mono-colored MDFC lands from Modern Horizons 3 that allow you to pay life to have them enter untapped, along with hybrid cards that are a tapped dual land on the backside
In all other zones, consider only the front face
Maybe because they typically don't command the monetary value enough to make it interesting to sell them, at least not compared to the nostalgic value of owning a piece of mid-90s Magic history