That puts it in junk Rare territory with Astral Cornucopia (XXX, Astral Cornucopia enters the battlefield with X charge counters on it
Planeswalkers can protect themselves in several ways: by removing opposing creatures, by generating creature tokens that can serve as blockers, or by having a high starting loyalty that will allow them to survive an attack
Only running 2 at the moment but may up that to 3
With multiple evasion keywords, the RMS Titanic is almost guaranteed to get some damage in that can be converted into treasure

Abandon Attachments Abzan Charm Aether Syphon Agency Coroner Aggressive Mining Alhammarret's Archive All-Seeing Arbiter Alms Collector Alpharael, Dreaming Acolyte Altar's Reap Aminatou, Veil Piercer Arcane Denial Arcane Endeavor Archmage Ascension Arm-Mounted Anchor Artificer's Epiphany Artistic Refusal Arwen's Gift Ashiok, Sculptor of Fears Atemsis, All-Seeing Aven Heartstabber Azorius Locket Azra Oddsmaker Bad Deal Bandit's Haul Bandit's Talent Bankrupt in Blood Battle of Frost and Fire Battlewing Mystic Bazaar Trademage Bazaar of Baghdad Behold the Multiverse Behold the Unspeakable Bequeathal Beza, the Bounding Spring Big Score Biomechan Engineer Birth of the Imperium Bitter Reunion Black Widow, Intel Expert Blighted Cataract Blitzball Blood Fountain Blood Scrivener Bold Biochemist Boros Locket Boseiju Reaches Skyward Brainstone Brainstorm Brainstorm Brainsurge Brilliant Spectrum Bringer of the Blue Dawn Brokers Charm Byway Barterer Cait, Cage Brawler Calamitous Tide Calim, Djinn Emperor Candlestick Careful Study Carnival Elephant Meteor Case of the Crimson Pulse Case the Joint Catalog Cathartic Pyre Cathartic Reunion Cavalier of Gales Cephalid Sage Ceta Sanctuary Champion of Wits Chandra, Flamecaller Chart a Course

I like the design because it grants a bonus to the creature that encourages attackingincreasing the chance that the equipped creature is killedand it grants enough of a bonus that it makes the equipped creature a target for creature kill