core 2020 booster box Magic: The Gathering Set (M20) Bundle | 10 Packs | Accessories 35 cards from Core Set 2020 Magic: The Gathering Core Set

So what is "Umi Control"

C Common Thunder King, the Lightningstrike Kaiju X LIGHT Level 9 [ ThunderEffect ] ATK 3300 DEF 2100 You can Special Summon this card (from your hand) to your opponent's field in Attack Position, by Tributing 1 monster they control

There are also no negative secondary effects of this attack, meaning that trainers can use it over and over to break through almost any defense and lay waste to the opposing team with remarkable ease before they can even react.

[10] Throw a few Phyrexian Obliterators and Geralfs Messengers on the board and you can win the game on the spot

I'm not even responding to God soberly