Save a few exceptions which are usually the least interesting ones, all titans are actually giants, so make use of Aegar, the Freezing Flame, Calamity Bearer, Sunrise Sovereign, and basically every other card that could fit right into giant typal decks
The effect is powerful though and shines in certain metagames, for example with a lot of Murktide, Prowess, and other heavy-creature decks
Ill break down each deck and offer up an impression on how it will play, starting with the face commander
Sure, your opponent gains life, but isn't that a small price to pay considering you're only putting in a one-mana investment
What you take largely depends on your power level and goals (and budget!), but most black removal is replacement level
For these cards, you are responding to a sound more than a combination of letters