Cheap mill plus beat combo

[Blackyzilla]

Wow it acts as 2 attacks so 2 triggers

[BlackJester]

Here's something I've been pondering over.
What happens with double strike and the {trepenation blade}? Is it one attack and two strikes or two attacks and it triggers twice with the possibity of different values for each?
And then add the {inquisitors flail} into the mix?

Nope. Trep blade triggers when the creature is declare as an attacker, long before combat damage step. It will trigger once per attack step. Double strike would be great, but wont mill any more cards.