What it does, is simply wait for the round in which all other bots are too peaceful and don't drown anyone. Then, at the last Move, it drowns all opponents and instantly kicks them out of the game.
By this Loyce has proved that 1 aggressive bot beats 6 pacifists (there were 7 places in the round that time).
But I'd like to prove that a group of pacifists will always beat an aggressor (here is non-triviality of this game).
Now there are 9 places in the Trial room and all our bots (insects) are pacifists (drown with only 1% probability, but revenge for drowning themself of course). If someone come with aggressive bot (like Loyce's one) it will climb with 8 pacifists - it's a question if it can beat 8 with the same ease as 6.
Also pacifists will now be added with a number of moderate aggressive bots - with 10% probabilities (mosquito, beatle, grasshopper, ant, fly, dragonfly).