Well, placing cards can be hard since it requires a lot like how to use a mouse
Well how do we use a mouse? We put our hand above it, move it and click left and right TA-DA its done!
So you can click, but did you know you can hold a click? yeah bet you didn't know that, so first left click, and HOLD and drag the card to one of 3 slots.
Some cards wanna be placed in more SPECIAL slots, like the vampire bird likes being on left or right and nothing by it so ofc play it in the spot needed. Some cards like being in the middle since yeah

Place the cards neatly and cleanly and say stuff like "Pardon me sire, but I believe the card goes here" and you are now a gentlemen