400 points: a card
A better fit for this card would be artifact-heavy stax lists such as Heliod, Sun-Crowned , especially if they run cards such as Mishra's Workshop that can help get Trinisphere out early to start putting pressure on the faster decks at the table
Clearing a creature from our opponents board while getting more Elves is a powerful effect from a land
The same goes for Zuko, who starts out as mono-red but ultimately becomes red-white-black (or Mardu)
Budget 1,000-5,000 euros: the diversified portfolio 3-5 French booster boxes (modern mix + 1 recently out-of-print expansion box) Pokemon Center ETBs from each new expansion 2-4 certified vintage French PSA cards (200-500 euros each Base Set, Jungle, Fossil holos) 30th anniversary sealed products At this level, you can start to mix sealed modern products with certified vintage French cards
This Mardu commander from Throne of Eldraine is best built as knight typal with auto-includes like Knight Exemplar and Kinsbaile Cavalier