overlord cards mtg 1 x of the Balemurk Extended Art Legendary Creature Overlord of the Mistmoors (Fracture

For example, say there is a combo deck that can consistently do 20 damage but has a hard time doing, say, 21

Players can call the summons for aid in battle

The Strong Ultimate is Immediate and Doesn't Kill Sorin - There are a few modern planeswalkers, such as Gideon, Ally of Zendikar, that could be dropped quickly, and used with it's ultimate as soon as it arrived, but you had to kill it

I will say this for Dark Betrayal though: when you draw it is very easy to get your opponent

If your big bad monsters are constantly getting exiled or killed and you aren't adjusting your deck to run more protection, you've only got yourself to blame