Obviously, there is a maximum of 15 in the Extra Deck
Here are all of its abilities: First Strike, Lifelink Ascend At the beginning of your end step, if you gained life this turn, create a 1/1 white Cat creature token
However, since the opponent has the right to choose, if you want to remove what you're aiming for, you need to clear it before deploying yourself
Garruk's Uprising gives Trample to all our creatures and helps us draw more cards constantly
The card is particularly useful in Yu-Gi-Oh Duel Links where it's part of a combo to combine it with Secret Pass to the Treasures to allow it to attack directly, and Union Attack to boost its ATK power tremendously while you control 2 other decently high-ATK Monsters (which won't nullify the restriction on Secret Pass to the Treasures being able to only use its effect on Monsters with 1000 or less ATK)
The other Commands (save for Silumgar's) all have dopey options you never really want much in multiplayer, Commander, or casual gaming, like gaining four life, preventing damage from a spell, or turning off life gain for a moment