In my experience playing Marvel-themed games, having a solid team composition can truly make you 'unkillable'. When building a Loki-based team, it's essential to balance both defensive and offensive capabilities to sustain in battles and dish out significant damage. One approach I found effective is to first choose characters or items that complement Loki's trickster abilities, enhancing his attack unpredictability. This also includes selecting teammates who can defend crucial points and keep Loki safe while he executes his attacks. Additionally, managing the timing of when to attack or defend is critical. Knowing when to hold your ground and when to launch an offense can turn the tide of any fight. This strategy requires practice but mastering it can make your team nearly unstoppable. Finally, don't underestimate the importance of adapting your comp based on the opponents you face. Some matchups may require a more aggressive build focusing on attack, while others demand a defensive approach. Keep experimenting and fine-tuning your team to stay dominant in the trending Marvel gameplay scene.