The red package adds both control and reach
On the Trail and Summer Bloom let you convert your cards to victory faster than your opponents, at least so you hope, and then you pack all the protection spells you can cram into the 99
This alone is not bad at all for MTG 's Commander format, be it casual or competitive, as Blue comes with a lot of good tools to counter opponents' spells, draw cards, and generally control the battlefield
Grolnok, the Omnivore Grolnok, the Omnivore provides self-mill decks with a powerful draw engine
At the time it was worded as a triggered effect ( when this creature deals damage, its controller gains that much life), but it has since been reworked into a static effect (damage dealt by this creature also causes its controller to gain that much life)