Glyph Elemental

Bestow {1}{W} (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 you control enters, put a +1/+1 counter on this permanent. Enchanted creature gets +1/+1 for each +1/+1 counter on this Aura.