March from the Black Gate is a uncommon Enchantment card from The Lord of the Rings: Tales of Middle-earth (LTR), collector number 545. Current market price: $0.80 (foil $1.08), TCGplayer market prices via Scryfall.
When this enchantment enters and whenever an Army you control attacks, amass Orcs 1. (Put a +1/+1 counter on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)
All The Lord of the Rings: Tales of Middle-earth cards and prices