Effects that modify a creature's power and/or toughness, such as the effect of Appeal to Eirdu, will apply to the creature no matter when they started to take effect
Normally I would just have released these as a new variant, but apparently I have used all my allowed storage from MMF
That's not so special for this MTG commander - just look at the number of infinite combos using Blood Artist - but while you do have plenty of other ways to form a deadly loop, and some like Gravecrawler and Forsaken Miner are even better than this, there are only a finite number in mono black
When the equipped dork trades with one or two blockers, you get this back, and you can swing again with it on a newly open board
The one good deck in the series is Plunder the Graves , though it gave us little in the way of anything fresh and innovative and is old hat