This is actually pretty great: it means that you can spend as much or as little mana to achieve the effect you need no wastage required
What do you think of the Mind Flayarrs precon
Legendary Creature - Human Knight Anim Pakal, Thousandth Moon Whenever you attack with one or more non-Gnome creatures, put a +1/+1 counter on Anim Pakal, then create X 1/1 colorless Gnome artifact creature tokens that are tapped and attacking, where X is the number of +1/+1 counters on Anim Pakal
Best White Token Generator Payoffs White loves to double tokens, something that green rivals closely
The full texts of these abilities are "At the beginning of the monarch's end step, that player draws a card" and "Whenever a creature deals combat damage to the monarch, its controller becomes the monarch." If the triggered ability that causes the monarch to draw a card goes on the stack and a different player becomes the monarch before that ability resolves, the first player will still draw the card