Dawn of Hopeutility$1.65Both reward gaining life and can steadily turn combat or life gain into long-term advantage. Dawn of Hope is more flexible, though it requires you to gain life from another source first.
Authority of the Consulsprotection$5.37Like Righteous Cause, it incidentally gains life over the course of the game from opposing creatures entering and can help stabilize against aggressive decks. It is cheaper and comes down much earlier.
Soul Wardenutility$2.76This is the closest low-cost equivalent in terms of repeated life gain from creature-heavy games, though it triggers on creatures entering rather than attacking. It provides immediate, ongoing life gain for a much lower cost.
Soul's Attendantutility$9.06Very similar to Soul Warden, this provides a continuous stream of life gain in creature-based games. It is cheaper and easier to deploy early than Righteous Cause.
Auriok Championutility$11.22A resilient version of repeatable creature-based life gain that is harder to remove thanks to protection. It costs less and works in the same kind of attrition-heavy decks.
Felidar Sovereignfinisher$3.62Both cards care about building large life totals over time, though Felidar Sovereign is a win condition instead of incremental gain. It fits life-gain shells that want a payoff.
Linden, the Steadfast Queenutility$0.40Linden rewards attacking creatures by gaining life whenever white creatures attack, which is a more aggressive version of the same broad game plan. It is cheaper and better in go-wide white decks.
Court of Graceutility$2.48This is a white enchantment that helps stabilize and generate advantage over time, often pairing well with life-gain and defensive strategies. While it does not directly mimic the trigger, it serves a similar slow-burn enchantment role.