My favorite three decks: Blue-Red 4-drop spells : This is the base archetype for UR, and is supported quite well Grixis Control: As the name suggests, this is basically just all the good Grixis removal and card draw combined, with some lands for good measure
The Tarrasque There are plenty of decks where 9 mana isnt too high of a price, especially not for a creature like The Tarrasque
Of course, theres also the artifact method, via Akromas Memorial for every ability under the sun, or the simple Eldrazi Monument
Of course, this Ravager just happens to be a Giant Wizard, so this cards ability can also be used to brilliant effect in Wizard decks that want to stack the board with Wizard tokens or other inexpensive Wizard cards
While providing your opponents with mana sources comparable to treasures may seem counter-intuitive, whenever an artifact an opponent controls is put into a graveyard (such as when they sacrifice a Banana), each Ape and Monkey you control gains a +1/+1 counter, meaning your opponents' treasures can cause your creatures to grow to massive sizes