From Scrolls Wiki
Iron Ogre is included once in the Energy Preconstructed.
- Iron Ogre used to be the most expensive Energy scroll in the game, but its cost has been surpassed as of 0.117 beta by Top Reaver Thea which costs eight Energy to use.
- Sep. 23rd, 2014: Attack increased from 7 to 8.
- Oct. 21th, 2013: Balance changes hit Live Server with Judgement Update
- Oct. 3rd, 2013: Iron Ogre's health was changed from 7 to 6 for an additional Armor 1 on Test Server 
- Sep. 13th, 2012: 0.71 alpha: Iron Ogre's cost was changed from 6 to 7
- Jul. 6th, 2012: Seen in the alpha version of Scrolls.