Rampart Architect is a rare Creature — Elephant Advisor card from Tarkir: Dragonstorm Commander (TDC), collector number 87. Current market price: $0.42, TCGplayer market prices via Scryfall.
Whenever this creature enters or attacks, create a 1/3 white Wall creature token with defender. Whenever a creature you control with defender dies, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.