These abilities list only the name of the ability as a "keyword"
Erkenbrand, Lord of Westfold
At worst, you're getting a zombie that fuels its upkeep trigger, but more realistically you'll be animating small creatures with ETB effects like Eternal Witness, big game-enders for a mana discount like Sheoldred, Whispering One, or anything in between
Boros Convoke remains a low-tier meta player and one of the few Aggro decks in the format after the recent bans
From the same set, there was the two-mana planeswalker Wrenn and Six that broke Legacy by returning Wasteland to your hand every turn, an experience that Magic Arena players have recently gotten on steroids when Wizards released both Wrenn and Six and Strip Mine onto the client over the summer
9.3 The Seller shall insure any V Lot in the power, possession or custody of the Company for no less than the maximum value of the V Lot as estimated by the Company for loss of or any damage to the V Lot and shall maintain that insurance until the Lot has been sold and the Seller has been notified by the Company that the Purchase Price has been received