The key to the original Malcolm's success is the fact that any damage from Pirates triggers the ability, not just combat damage
For four mana, you get a 4/4 that allows you to pay three mana to blink another Creature you control
In the vast majority of games, the life that your opponent gains from you nuking their creatures with Swords to Plowshares will not amount to much, unless theyre playing a black deck with life-to-resource cards (watch out for Toxic Deluge or worse, Yawgmoths Bargain !) Swords to Plowshares isnt a particularly expensive card, and its very easy to find
You dont need to force a splash or chase shiny cards to build a winning decklet the packs guide you, and stay flexible
If you can somehow manage to execute Darettis last loyalty ability, the emblem it creates basically ensures youll never lose an artifact ever again
Archetypes like Devoted Druid combo or Heliod, Sun-Crowned combo often make use of Ranger-Captain of Eos for a few reasons