Armed//dangerous

[ibtrickey]

If you attach  {Armed // Dangerous} to a green creature that is 5/5 that has trample and are attacking with it.. What happens?? Say they have four creatures. One 1/1, one 2/2 {fog bank}, two 3/3. This happened to me. We had no idea what would happen.. Trample and double strike?? Is==??

[Gorzo]

Take it one (combat) step at a time.

- When first strike phase comes around, your armed creature has 6 damage to dole out (it's a 6/6, because it was a 5/5 and gained +1/+1 from Armed). After blocks, the attacker chooses which order to deal damage to creatures. The 1/1 would take 1 damage* and die. The 3/3s would each take 3 damage* and die. {Fog bank} would have 2 damage assigned to it's toughness, and be prevented.
In this sotuation, barring any shenanigans, the smart thing to do as the attacker would be to choose the two 3/3s to damage first, then the 1/1, then fog bank. The 3/3s would both die before being able to hit back, and it leaves you with the best scenario for the 2nd swing in this double strike. If for some odd reason you choose to assign damage to fog bank this phase, you will have to assign at least 2 to it (lethal = it's toughness) which will all then be prevented and go to waste.
No damage is remaining to trample over.

- the normal combat phase comes next. Fog bank is still a blocker, and still has 2 toughness wether you hit it in first strike or not. Anything else that wasnt killed in the first strike is also still blocking. You again have 6 damage to assign. You must assign 2 damage (at least) to Fog Bank, as that would be considered lethal. You must also assign lethal damage to any remaining blocker (1 to the 1/1, if all went well as i described above). The rest may trample to the defending player (for 3). Again, fog bank prevents the damage done to itself and survives.

*if any of the other blockers had first strike, they would also deal damage back to your 6/6 double-striker here.

Edit: sorry misread, only saw 1 3/3 in your example, and you specified there are two. Fixed answer accordingly.