> 何かヒーロー友に守られ血を流させて。

I interpret this sentence from the manga 「僕のヒーローアカデミア」to mean "Some hero I am,
making my friends spill blood to protect me." However, I have two questions:

What is the use of the te-form of 流させる at the end of the sentence? Usually,
when I see the te-form alone, I assume it's a request (i.e. shortened form of
〜てください), but I don't see how this quote could be construed as such. It's part
of a character's inner monologue.

Also, though not my main question, is it acceptable to drop the る from 守られる as
is done above?
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2017-07-25T13:46:04.513
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question
て-form quotes
What is the use of て-form at the end of this sentence?
It seems that the original sentence is:

> 何がヒーロー 友に守られ 血を流させて。

It's an inversion (倒置) of 「友に守られ血を流させて、何がヒーロー（だ）」

The te-form at the end means "while" "when" or "although". (≂ 流させておきながら)

友に守られ -- While (I'm) protected by my friends,  
（友に）血を流させて -- and making them shed their blood → and making them bleed,  
何がヒーロー（だ） How can I be / call myself a hero? → Some hero I am.

* * *

> is it acceptable to drop the る from 守られる as is done above?

Yes. 守られ is the continuative/connective form (連用形) of 守られる.  
連用形 is used to connect with another verb / verb phrase (which is 流させて here).

You can rephrase it as follows, using the te-form 守られて:

「友に **守られ** 、血を流させて…」 ≂ 「友に **守られて** 、血を流させて…」

The former sounds a bit more literary than the latter.

Similar examples:

> 「警察に **呼ばれ** 、事情を聞かれる」≂「警察に **呼ばれて** 、事情を聞かれる」  
>  「パーティに **招かれ** 、友人と参加した」≂「パーティに **招かれて** 、友人と参加した」  
>  「京都へ **行き** 、清水寺を見る」≂「京都へ **行って** 、清水寺を見る」
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answer