It is important to have a strong extra deck and these are some powerful monsters to have in your extra deck.
5. Colossal Fighter
Colossal Fighter is a powerful monster and is arguably the best warrior synchro monster in Yugioh. With 2800 attack points and 1000 defense points, it is a good offensive monster as well. However, the reason Colossal Fighter is on this list is because 0f its effect. It gains 100 attack points for every warrior monster in both player’s graveyard and when its destroyed, Colossal Fighter can revive any warrior monster from either graveyard. The best part is, it can revive itself as well! Colossal Fighter is a great monster to have in a warrior deck. Due to its second effect, Colossal Fighter is a great OTK card as well. A good OTK with Colossal Fighter is to play Armory Arm and equip to a monster on your opponent’s side of the field that is stronger than Colossal Fighter. Then attack the monster with Colossal Fighter, revive Colossal Fighter, and repeat and because of Armory Arm’s effect, it is your opponent that loses 2800 life points each attack.
4. Black Rose Dragon
The monster form of Dark Hole, Black Rose Dragon is an easily playable, nuke monster. When it’s special summoned, Black Rose Dragon destroys the whole field. Plus, if you have another summon left, Black Rose Dragon allows you to have a direct attack opportunity. If you decide to keep Black Rose Dragon, that’s fine too because with 2400 attack points and another stellar, Black Rose Dragon can still prove to be vital. Once per turn, Black Rose Dragon can switch the battle position of a monster on your opponent’s side of the field and reduce its attack points to 0, giving you the chance to inflict at least 2400 points of damage upon your opponent! It is my favorite 5Ds dragon, and it is the most powerful as well.
3. Goyo Guardian
Being the strongest level six monster statistically wise (2800 attack points) and being a level six synchro monster (and thus being the easiest type of synchro monster to summon) earned Goyo Guardian the third spot on the list. However we can’t forget its awesome effect; when Goyo Guardian destroys a monster by battle, it can bring it on to your side of the field. Enough said.
2. Brionac, Dragon of the Ice Barrier
The ultimate counter to the greatest of defenses is Brionac, who isn’t much of a barrier as he is as a bomb! Thought its stats are decent with 2300 attack points and 1400 defense points, Brionac has a stellar effect that allows it to discard a certain amount of cards in order to return cards on the field back to the hands of the respective owners equal to the total of cards discarded. Brionac goes great with Infernity decks and other swarm decks as well. It’s also easy to play, as it is a level six monster. The only weakness Brionac has is its relatively weak stats.
1. Red Nova Dragon
This might come as a surprise to many, however I believe Red Nova Dragon deserves to number one. For one, it’s not that hard to summon as it needs one monster and two tuners to summon. That’s not really hard to accomplish. However its effect is so good, no matter how hard Red Nova Dragon’s summoning conditions seem to be, it’s totally worth it. RND has a whopping 3500 gains 500 attack points for every tuner monster in your graveyard, so it will actually have 4500 attack points (at the least). Plus it cannot be destroyed by card effects. The best part about RND’s effect is that it can sacrifice itself to negate an attack, and then revive itself at the end phase! Red Nova Dragon is definitely the strongest synchro monster, and might even be the strongest monster in Yugioh as well.
Honorable mentions: Power Tool Dragon, Light End Dragon, and Arcanite Magician.
Here is part two of the list:
10. Armed Dragon LV5, 9. Penguin Soldier, 8. Reflect Bounder, 7. Elemental Hero Wildheart, 6. Brionac Dragon of the Ice Barrier