i have been out of mtg for a long time (so helpful suggestions would be fantastic)
stall game: tangle, path to exile, seal of cleansing, oxidize, rust.
mana lock down: winter orb, amulet of vigor, root maze, natures will (untap all your mana each turn with soltari foot soldier).
win condition: armagedon, knight of the reliquary.
totally unsure about the manabase.