Universes Beyond is planned to be half of all future sets going forward, so this is a price hike on half of all Magic product
Almost any kindred deck with two or more colors can find a use for Secluded Courtyard in the 99
Then you can easily level it up for two mana prior to it attacking on turn 3 and then getting a 3/3 from the +1/+1 counter you put on all your attackers, and it will keep growing over time as well as your other attackers
Standard already has 7 creatures in the 2 mana [and] haste [in the] 2+ power slot, all with upsides of various types Red has so many early game haste threats even the ones with an extra point of damage like this and charming scoundrel arent really aggressive enough to compete. With some users focusing on the mechanics side, others were hoping for a more direct reference: Should have Cannot be blocked by walls.
Its a land so can replace a basic Island pretty freely
This includes choices about what spells to cast or what abilities to activate, as well as any decisions called for by triggered abilities or for any other reason