This will be a huge new strategy in standard, and it looks like Selesnya archetype will gain the most benefit from Tyrranax Rex and other similar cards with the mechanic
this turn, this card gains this effect
It gives you an additional card all the time while technically being on the play a bit below 40% of the time, so it should slightly decrease the fail rate
For the pull rates, I have three of the four sources I used for the main sets back in my introductory post on the Sun & Moon Series, namely my own data from Youtube videos (1), that posted on E4 by @burpies (Pull Rates in Sun & Moon - Sword & Shield Sets) (2) and the two videos by Derium (4)
You can read our breakdown of the banlist and the reasoning behind which cards are banned in our article, Whats Banned in Commander, and Why?
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