Block with your creature to prevent damage, then sac your chump blocker to gain life
In this case, it's Amalia Combo, the deck that looks to trigger an exploration/lifegain loop with Amalia and Wildgrowth Walker, then wipe the board and win in one swing
If you put the cards mentioned into a solid Black deck, you have the beginnings of some power black, but youll need at least one big creature to go toe to toe with Serra Angels and Shivan Dragons
Since this only costs 2 mana, this card is likely to see a lot of use in various Commander decks
Animal May-Ham Other Spiders, Boars, Bats, Bears, Birds, Cats, Dogs, Frogs, Jackals, Lizards, Mice, Otters, Rabbits, Raccoons, Rats, Squirrels, Turtles, and Wolves you control get +1/+1
This still allows you to have two Commanders rather than one, and thanks to the tight theming of this deck, they work together extremely well