Have you ever considered saving text space by using numbers for multiples of X (like 2X for the second part of Pest Infestation, 5X for Crackle with Power, or X/2 for Hydroid Krasis)? The German versions do the last one. Or how about for the number of dice rolled (e.g., 2d6 instead of two d6) like the Spanish cards do?

It doesn’t save much space and makes it a little less clear.

Regarding your State of Design: I disagree that Quandrix was seen as too similar to Similar. I think it was seen as too similar to Ramp, which has been the dominant UG archetype in Standard ever since Hydroid Krasis was printed in Ravnica Allegiance (despite a ridiculous number of bannings). I think you achieved "feels different from Simic", but failed to achieve "feels new and different".

Our goal was different from Simic. Early in vision design we experimented with all five factions being a departure from what the color pair has ever done and it was too much of a departure. Players need familiar hand holds in any new set, so we can’t just change everything.

Is it only big creatures that are considered when designing for Timmy/Tammy? Because I was thinking about it and casting Finale of Deviation for 15 and swinging out tickles my inner Tammy just as much as dropping a huge Hydroid Krasis.

Timmy/Tammy is about a lot more than just casting large creatures. Some Timmies/Tammies don’t even like casting big creatures. It’s about playing for the experience and doing things that bring you an emotional response.

I want a Hydroid Krasis as a pet! Ever since I started following you, I've periodically asked for a GU flying Hydra with, and though you never answered me, you listened~

I do pay attention. : )