It's also possible to build a Zinnia Commander deck to maximize enter effects, and here's a few cards to help begin that process: Panharmonicon - this four-mana artifact has a static ability that says if a creature or artifact entering would trigger an ability of a permanent controlled by the player, that triggers twice instead
Part of this is due to flashback letting you use it twice, and part of it is the political angle for Commander: You can put counters on other players permanents to strike deals or maybe enhance cards like Generous Patron and Nils, Discipline Enforcer
You thought Wizards of the Coast was content only making infinite money off their FIN collab just a few months ago
This character lets you be a bit more aggressive in your challenging or get back some of your early-game characters to keep your game going smoothly
Later during that same main phase, another effect gives you an additional combat phase after this main phase
Of course, its also very telling just how much difference scry 1 versus scry 2 can make when the card has such a low opportunity cost