For 5-color, 60-card decks, the format will dictate which lands you have access to but as far as the number of lands to include goes, it doesn't deviate from the usual 24-26
Goreclaw, Terror of Qal Sisma will let our larger power stuff get a double cost reduction
2 Mike, the Dungeon Master Mike, the Dungeon Master is a 2/2 human that costs one generic, one green, and one white, and he is an absolute powerhouse You can pay two generic mana and tap Mike to return a creature that was put into your graveyard this turn straight onto the battlefield
The first cards with defender actually in their text were printed when Betrayers of Kamigawa came around in February 2005
It is very cheap at 1 mana, and although you pay a large amount of life, you can even steal from your opponent
I'll explain how