From Beyond [Battle for Zendikar Promos] Portal Three Kingdoms its power and toughness are

its power and toughness are each equal to the number of Forests you control

Set: Commander 2013 Type: Artifact Rare Cost: {3} You may activate abilities of creatures you control as though those creatures had haste

"I will flay the skin from your flesh and the flesh from your bones and scrape your bones dry

and bower Birth fern and flower

create two 1/1 green Ooze creature tokens

From Beyond [Battle for Zendikar Promos] Portal Three Kingdoms its power and toughness areSet: Battle for Zendikar Promos Type: Enchantment Rare Cost: {3}{G} Devoid (This card has no color.) At the beginning of your upkeep, create a 1 1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}." {1}{G}, Sacrifice From Beyond: Search your library for an Eldrazi card, reveal it, put it into your hand, then shuffle your library.