Defense of the Heart [Urza's Legacy] Plains Island instead of declaring blockers

instead of declaring blockers

believe that humans sprang forth from Merfolk who adapted themselves in order to explore their last frontier

Set: Guilds of Ravnica Promos Type: Creature — Spider Rare Cost: {5}{G}{G} Reach Undergrowth — When you cast this spell

that many plus one of each of those kinds of counters are put on that permanent instead

Set: Unlimited Edition Type: Artifact Creature — Wall Uncommon Cost: {4} Defender (This creature can't attack

Defense of the Heart [Urza's Legacy] Plains Island instead of declaring blockersSet: Urza's Legacy Type: Enchantment Rare Cost: {3}{G} At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, and put those cards onto the battlefield. Then shuffle your library.