The next attack you would do with Golem ex deals an extra 120 more damage after using Dynamic Roll, letting you deal 170 with it, or a massive 300 damage with Rock Blaster, which normally only deals 180 on its own
Most Grass decks were already running Giant Cape anyway, but Leaf Cape pushes a card like Celebi ex up to 160 HP vs the 150 HP of the Giant Cape, which makes it much more reliable when it comes to surviving some heavy hitters that deal exactly (or up to) 150 HP
This effect is Specially useful with the likes of Stellarknight Delteros whose effect prevents the opponent from activating any card when successfully summoned, thus preventing the opponent from losing cards
By looking at the complete list of permanents to consider (not including mana fixing), we were then able to see where the deck was well covered and where it could use some shoring up
Sarkhan Vol If you read my columns, then you know how much I adore the first run of Sarkhan