Despite being a relatively old collection (from November 2021), there are still important caveats to the course of the current format, where many things have changed until then, especially when it comes to one of the cards that is in first place
The Original MTG Legend Rule of 1994 2004: The first MTG Legend Rule came into existence in 1994 with the introduction of legendary creatures in the aptly named set Legends
Thankfully, if you're not the monarch at the beginning of your upkeep, you create a 1/1 Assassin token with deathtouch and haste, providing an immediate means of attacking to regain the title of monarch
Quina, Qu Gourmet is another good way to get extra creatures, as it tacks an additional Frog token on to any other token creation that you do on your turn
And with Zinnia, that's a third Agate Instigator tripling the damage