Combos Utilizing Mana-Web

Opponent can only use one color during his turn and with the manaweb he can only use one mana every turn!! You'd better play a weenie green with maybe a touch of blue.

If they pay the slow motion they are forced to tap all of their land in their upkeep. Excellent lock-down combo

play the mana web and the helix. Then pay to deal damage

enchant opponent's creature with slow motion & his land with venom. opponent must either sac creature enchanted by motion or tap land to pay cost of motion & take 2 damage from venom.

Cast the spreading algae on an oppents swamp and when a swamp they control gets tapped, boom, there goes a swamp. The Ring of Gix don't have to be there but it is just a way of tapping that swamp.

opponent will be tapped out of mana and u can use mind over matter to untap your tolarian academy to add u to numbers of arifacts you control (currently you have 2 artifacts)

use the mana web ability then tap your oponents remaining lands

make opponent choose: keep creatures, or play spells. in order to pay the upkeep of even only one creature, the player ends up with most if not all their lands tapped before they can play any spells.

think about it

Use the icy manipulator to tap an island, mana web taps them all, then you are swimming in life