I like Turbo Duels, so I made the Speed World card that ARC-V was too lazy to make [Speed World Final] [Written]

[White Zeraora]

Speed World Final
Spell Card/Field

Unaffected by other cards' effects. This card's controller cannot activate Field Spell Cards. When this card is activated: Place 3 Speed Counters on it (max.12). During each Standby Phase: Place 1 Speed Counter on this card. You cannot activate Spell Cards unless you remove 2 Speed Counters from this card. You can only use 1 of the following effects of "Speed World Final" per turn, and only once that turn:
During your Battle Phase, if this card has 5 or more Speed Counters: You can activate this effect; All monsters you control gain 100 ATK for each Speed Counter on this card, until the end of the Battle Phase. Then, at the end of the Battle Phase, remove Speed Counters from this card so that it only has 1 left.
When a card or effect is activated, except "Speed World Final" (Quick Effect): You can remove 6 Speed Counters from this card; Negate the activation, and if you do, destroy that card.
During your Main Phase, if this card has 1 or less Speed Counters: You can Tribute 1 monster you control; Place Speed Counters on this card equal to its Level/Rank/Link Rating.

This is obviously made with a Turbo Duel in mind, assuming each player will have their own copy of this card on their field, with their own Speed Counters on it.

[Loleo]

If you gave it 3 instead of 4 counters at the start and you remove the except the first turn clause it accomplishes the same thig in less words. Also I loves it. I love this. It has great synergy with Paleo Frogs