Entropy ~ It's not a Warrior-Type monster, no. It's not in Dark Crisis. It's not in Dark Revelation Volume 1. You were close with "Tomb Raider", and to get the set my card is in you need to decide what would be more futuristic than what Lara usually wanders around in. It's not necessarily futuristic compared to today, though.
...That was all rather less subtle than I'd like to be, but to be honest I thought this clue would have gone in a few days, let alone hanging around for what's probably over 3 weeks now. Just guess the thing, already.