Sabertooth Stoneshifter

Trample, awaken 3 (If this card isn't awakened and you cast a spell with converted mana cost {3} or less, awaken it. It becomes a creature.
Landfall - Whenever a land enters the battlefield under your control, put a stone counter on this card.
Every three times you put a stone counter on this card, put a +1/+1 counter on this card.
Some wonder how the Spires got there. Not many, though.