Doctor Who Advent: Day 17

It doesn't seem any time at all since I started opening this calendar, and here we are at day 17 already! It's been pretty good so far, so let's see if we get another good one after yesterday's dissapointing Cyberman!:

 

Another Silence! That's pretty good. I don't quite know how to practically use them in scenarios, but in sure there's a way!

Results so far:

Day 1: Blue Dalek

Day 2: Child-bearing Cyberman

Day 3: Shy Weeping Angel

Day 4: Tiny Zygon

Day 5: Red Dalek

Day 6: Skinny Silurian

Day 7: Well-proportioned Ood

Day 8: Unseemly Sontaran

Day 9: Lanky Silence

Day 10: Orange Dalek

Day 11: Diminutive Ice Warrior

Day 12: Twin Sister Angel

Day 13: Unlucky Zygon

Day 14: Second Silurian

Day 15: Duplicate Dalek

Day 16: Dissapointing Cyberman 

Day 17: The sound of Silence