mtg murders at karlov manor commander deck - - Deep Clue Sea the gentle Kausts elaborate underground network of contacts reaches every corner of Ravnica “Deep Clue Sea” Full Deck

For example, during a Bloomburrow Limited event, you can't add Relentless Rats from your personal collection

Regardless, Nissa returned to Zendikar, where she found the Eldrazi had fully escaped and were causing chaos in her homeworld

It makes removal part of your game plan and that alone is powerful

The loss of life Jerren causes isn't exactly optimal, but you can easily offset this downside for two mana, Jerren can provide a target Human with lifelink until the end of the turn

If Karn has no loyalty, he abandons you

There also seems to be a treasures sub-theme which I do not think is very well supported, so it will not come up in every Red-Green deck