one piece op10 most expensive cards OP10-118 Monkey.D.Luffy SEC - TCG English Card Near-Mint Secret Rare The Most Valuable One Piece

Note that even if you have another creature gain those abilities until end of turn, Boon-Bringer Valkyrie will keep them

Glassblower's Puzzleknot : [Category 1] 2 mana in, 2 Energy out, then 3 mana in, 2 Energy out

One note is that it combos with Crown of Flames, Whip Silk, Shimmering Wings or Flickering Ward to gain infinite storm count, but you probably don't have anything where that matters outside of Dragonstorm

Ojutai, Soul of Winter ( F, LC, PF ) - Significantly better at 6 CMC than 7, he can allow you to put every other opponent in an effective stasis while you mow-down their HP

If there's any Commander that could make a Vehicle deck work, it's The Indomitable.

Its not terrible, and there is lifegain, but the financial impact will be low