It also works against energy counters from Kaladesh and experience counters from commanders like Meren of Clan Nel Toth
Ungraded & graded values for all MTG M11 Magic Cards
(They deal both first-strike and regular combat damage.) It seems docile enough
Its not efficient for competitive formats, but it shines when you want steady value and political power
If Bruse Tarl leaves the battlefield after other Oxen you control have dealt first-strike damage but before regular combat damage, those Oxen won't deal regular combat damage (unless they still have double strike for some other reason)
There's a potential for Changeling tribal decks to make use of it too, I suppose, but my favorite place for it is actually Ghen, Arcanum WeaverGhen, Arcanum Weaver, who's very excited to loop it in and out of play for extra Angels at a moment's notice