mtg blue search your library for a card Rules Text: sacrifice, library, creature, Colors: Colorless, White, Blue, 86 cards you may search your library for an instant or sorcery card with converted mana cost 2 or less MTG Reshape Darksteel 31/165 Regular

By the time it gets into combat, we should have a fair number of creatures in the graveyard already

Grave Danger (Blue-Black)

Amusingly, your opponents will probably need a non-creature spell to take it out, so you might get one last draw on the Sentinel's way out

There really isn't much difference between the various double-matte sleeves as far as quality or feel, so it makes sense to me to buy the least expensive option available

Now lets talk through each individual deck in more detail

Honorable Mention: Mycoid Maze If the enchantment Twists and Turns is on the battlefield, instead of exploring you scry 1 and then explore