Titan the world walker

Defender, Indestructible, Ever Evolving (when you cast a creature card this card gets a +1/+1)

When this card enters the battlefield put five time counters on this card when it reaches zero time counters play one card of any type including lands or two cards with turtle or wall then re-apply the time counters.

If this card is on the battlefield with three other walls or turtles then all walls or turtles you own get the same amount of toughness as power and can attack as if they didn't have defender