mtg all gate cards Colossus (Card) Gates Ablaze deals X damage to each creature Baldur's Gate MTG Card Collection

In order to prevent the opponent from becoming the monarch, Palace Jailer will exile one of their creatures, making it harder for them to take that title from you

Adeline, Resplendent Cathar applies pressure very quickly if she comes out early with Goldbug, Humanity's Ally on the battlefield, while Rick, Steadfast Leader is a decent anthem and gives all of your Humans good abilities

At least, until it has a friend

Obviously these sorts of effects are much less exciting when they cant target opponents directly, but some are worth a look for efficiency or synergy reasons Dire Flail and Hunters Talent come to mind

Vitu-Ghazi Guildmage is in the list to be a populate-on-demand effect

only and only while supplies last.