Bestow
(If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)
Landfall - Whenever a land enters the battlefield under your control, put a +1/+1 counter on Glyph Elemental.
Enchanted creature gets +1/+1 for each +1/+1for each +1/+1 counter on Glyph Elemental