Your deck needs to use counters for this excellent proliferate card to work, but the free proliferate triggers do so much work in decks that care about it
You only get one choice though, so make sure you get rid of the cards giving you the most trouble
Themed Disney Lorcana playmats, card sleeves, deck boxes, and card portfolios will also be available at launch
Let's break down the competition
If an effect says the Beast token attacks or blocks "if able" and you control one or more other creatures that are able to attack or block, you must attack or block with the Beast token and at least one other creature
Shadowmoor brought us large numbers of hybrid cards, which tried to change all that by allowing players to choose which color mana to use