Waiting forever on that 2nd fungus draw? Play tomb, then fungus, then dryspell . You'll get 2 spores from the tomb. Tomb acts like a quanta efficient copy of fungus, which helps with building the fungal army earlier. Metamorph to :life when appropriate.
See G7 deck from here (https://etg.dek.im/forum/index.php?topic=1068.msg4985#msg4985). Although this version was not played, we did consider Fungus as Immo fodder in that deck.
The bobbit worms have a fairly long body, but a distinctly thick set, broad shoulders, and you know, their, their skin is loose, allowing them to move about freely, and they twist around. Now look, here’s a cluster of TOXIC fungus. You think the bobbit worm cares? It doesn’t give a $hi+. It goes right in to the mushrooms to get some fungal poison. How disgusting is that? It eats fungal poison. Ew, that’s so nasty.