You opponent can't destroy this card by battle if you equip it with Horn of the Unicorn since it can't be destroyed by monsters with 1900 or more attack. Its attack will go up to 2,100 and defense to 1900 which leaves your opponent no choice but to destroy it with effects.
When Horn of the Unicorn is at the top of your deck, you can use Jar of Avarice at your opponent's turn to possibly move it. It shuffles 5 cards from your graveyard back to your deck then draw 1 card. You can also use other cards that can make your deck shuffle to prevent drawing Horn of the Unicorn.
Since Horn of the Unicorn can hinder your draw. You might want to use cards with draw power.
Oct 17 - Oct 25
Goals you should achieve
1. Unlock Yugi Muto
Unlock Yugi Muto when you clear the Final Duel Zone for the first time.
2. Get Union Attack
It is very important to get Union Attack, as it is used in many farming decks. If you want to farm other LDs more efficiently try to get at least 2 copies of this card, 1 copy is given to you after you finish Final Duel Zone for the third time.
3. Get Event Exclusive Drops
As with every other event, this one has drops that can only be obtained for a limited time, so try so get as many of them as possible. Best would be to have at least 3 of each card.
Collect Dice Fragments by dueling in Duel World and Ranked Duels.
Use Dice Fragments to roll 1-3.
Move along the board earning Millenium Coins
Collect Millenium Coins and try you luck with the Card Lottery
Earn Zone Reward for each zone that you clear.
You will obtain 25 Dice fragments once per day when you enter the map.
Daily Bonus resets at 02:00 am
How to earn Millenium Coins
You can earn Millenium Coins by:
Dueling in Event Duels
Landing on Millenium Coin spaces
Landing on the same space as a friend.
Tips to earn more Millenium Coins
The stronger the Legendary Duelist is, the more Millenium coins you will earn when you win
Completing Duel Missions when Dueling Legendary Duelists will give you additional Millenium Coins.
The Vagabond is a strong opponent, but Dueling against him will net you extra Millennium Coins whether you win or lose!
What does it do?
Legendary Duelist Space
Duel with a Legendary Duelist. Win to continue along the Map and get "Millenium Coins" by completing Duel Missions.
Standard Duelist Space
Duel with a Standard Duelist. Obtain "Millenium Coins" after the Duel.
The Vagabond Space
Duel with the Vagabond. Obtain a lot of "Millenium Coins" after the Duel.
I just fought a pvp game where the guy had Horn of the Unicorn equipped to Maha Vailo. I destroyed his Maha Vailo, and the Horn of the Unicorn went to the graveyard. It never went to the top of his deck. Is that normal?
I've got a couple of these myself but can't see myself ever using it. For the 10 or so battles I've played and the opponent has used it, it basically sets up for a loss if you can't draw any monster after the first time you activate it. It's been the downfall for all duellists I've faced thus far.
Just a theory (I don't have the cards to make the deck yet), but I think that Horn of the Unicorn might be very good in Gravekeepers. Sure they have very good effects, but they are lacking in the beatdown department. Equipping this to a card like Recruiter makes an OK first-turn play. I don't know if you get the Recruiter Search first or the Unicorn on top first, but if Recruiter activates first should it die, then it can be really good for the deck. Just a theory.