Oh okay, but that's with armor. I thought you meant he couldn't do a wakeup to try to escape the mine.
Any character can perform at least 1 wake-up that will escape the gravity mine. What I hate about it is that the gravity mine has a tendency to disappear when they do this (I don't think it should). In any case, if you're playing an average to low-level player, you likely won't need to worry about them countering the gravity mine (because they won't know how) & can punish them accordingly. However, against higher-level players, you need to play it safe & anticipate that they'll either block the mine or perform a wake-up attack (tech rolls won't work at all & although many supers will, it's usually considered impractical to waste all of that meter, so you won't usually see that happen often; just the same, be prepared if they have full meter). So, you've essentially got a built in 50/50 since your opponent has exactly 2 options (block low or wake-up). If you have Lex's shield trait activated, this is a no-brainer because then your opponent only has 1 real option (a fast, multi-hitting wake-up - which most of the cast doesn't have); with the shield trait, you can take the hit from the wake-up & perform a full-combo punish - I recommend an overhead like b2, f2, or f3 to hit them in case they block low. So, with trait, even if they avoid the mine, they're still most likely going to get hit. If they block low, as long as you do any of the aforementioned overhead attacks, you can still full-combo punish (especially if you have meter, which you should). Regardless, as long as you have trait, Lex will almost always have the advantage.
However, if you don't have the shield trait activated, it becomes an entirely different story - your opponent still has the same 2 choices to avoid the gravity mine (wake-up or block low). However, if you don't have the shield trait activated, you have 3 choices - 1) risk getting hit by a wake-up by doing an overhead attack in case they block low, 2) block in case of a wake-up & then punish but lose an opportunity if they block low, or 3) MB f3 or b3. Of those 3, I recommend the latter (if you have meter); it's relatively safe even without trait, because it can defeat many 1-hitting wake-ups & the f3 in particular can also defeat the low block. So, there are still ways around not having trait, but it's more dangerous. If you don't have trait or meter to burn, I'd recommend the 2nd option - block, then punish because even if you're wrong & the opponent blocks low instead, it leaves both players in a relatively neutral state rather than the alternative - you getting punished by a wake-up.
To my knowledge, characters that have fast, multi-hitting wake-ups that can beat this insanely wonderful setup include: Flash (actually whiffs, but it gets him out of danger), Nightwing, Batgirl, & probably a couple of others I'm forgetting. Feel free to share who else may fall under this list.
Lex is a smart character & as long as you're a smart player, you'll do just fine...
