It can Fusion Summon any Level 5 or lower Fusion Monster from the user's Extra Deck at the cost of 1000 Life Points, with the handicap that it can't attack, and it's destroyed by the End Phase
Ruthless Technomancer As soon as you have any big creature on the board, Ruthless Technomancer can cosplay as a multicolor ritual with the added benefit that you can spend the extra mana whenever you want
Everyday Wonders secret missions Everyday Wonders Museum 1 How to beat: Collect the One-Star variants of Vulpix, Piplup, Pikachu, Sylveon, Mareanie, Jigglypuff, Snorlax and Greedent Reward: Wonder Hourglasses x12, Shop Tickets x10 Everyday Wonders Museum 2 How to beat: Collect the Two-Star variants of Milotic ex, Mega Diancie ex, Mega Sableye ex and Hisuian Zoroark ex
Anyway, the Onomato/4th Axis/Future Emperor gimmick and the No.39 Utopia/Zeal/RUM gimmick coexist under one archetype called 'Hope Deck'
Most of Buster Whelp's effects won't come into play, with the exception of the effect it has when it is Normal Summoned which adds any Destruction Sword card from your deck to your hand
If this card is destroyed by battle, or if this card in its owners possession is destroyed by an opponents card effect: You can add 1 Mathmech card from your Deck to your hand 6