A good Mangara's Blessing, Psychich Purge Guerrilla Tactics

[Fastbond]

The reason these cards are bad is because they don't work with timetwister or duress.  So there needs to be a fix.

Savior for the Peasants
WW
Prevent all damage done to target creature or player by a single source.
If a spell or ability target opponent controls causes you to reveal this card, shuffle it into your library, or discard it then gain one life and target opponent loses one life.

Final version:


Savior for the Peasants
WW
Prevent all damage done to target creature or player by a single source.
If a spell or ability target opponent controls causes you to reveal this card, shuffle it into your library, or discard it then gain one life and target opponent loses one life.

[Guardian]

Cut the damage as I don't think it is in flavour with white. Moreover, WW is a bit restrictive. Could easily be 1W and it would still be an OK card. As for Timetwister, you don't reveal your hand. You take all cards (hand, graveyard and library), shuffle them and draw 7 cards. There's no revealing there so it would not trigger your card. Same with all draw 7.