The one potential exception here is Pia Nalaar, which, while she does not technically have improvise, does provide a healthy set of stats and a relevant ability
To make things more complicated, not all changes are permanent additions to the games ever-changing Standard format Magic tournaments usually uses only the last two years worth of cards which means that people that saw a game once, may experience another very different set of cards and frames when they come across it again some years afterwards
Im not willing to completely discount this since acceleration is particularly effective in Planeswalker duels and it pairs well with card draw, but this looks like a very bad card
This is a far cry from the aggressive, fist-into-face deck that exists in Block Constructed, but unless some significant, cheap threats emerge for red in the next set, the closest well get to a large clump of Mountains will be through a midrangey thing that looks something like the above example or an even bigger control-based red deck.