The long wait is over, one of the most competitive archetypes in the Yu-Gi-Oh! Trading Card Game (TCG) is finally making its way to Master Duel on the 4th of July.
Maliss Hearts Crypter

If the Selection Pack name wasn’t telling enough, Maliss Hearts Crypter being one of the advertised cards solidifies the arrival of the Maliss archetype into Master Duel.
Maliss Hearts Crypter comes wearing many hats. She can offer recursion for any of her sister Maliss cards while offering board removal at the same time. If the need calls for it, she can act as fodder for Link climbing.
Hearts Crypter should be able to come back via her own special summoning and can also be a pretty large beat stick. Between a beefed-up Hearts Crypter and Accesscode Talker, there’s very little in the way of a One-Turn Kill (OTK).
That said, we still do not have the full official card list for this pack. We do not have confirmation that all current pieces of the Maliss archetype from the physician card game will be made available, or if this is just the first wave for Maliss.
There’s also the fact that Master Duel currently doesn’t have some of the consistency and end board tools that Maliss would enjoy, like the @Ignister monsters: Wizard, Backup, and Allied Code Talker.
Due to this, and how different Master Duel’s ecology tends to be from the physical game, there’s a good chance that Maliss may not be as dominating a presence in the digital arena.
Battlewasp - Grand Partisan the Revolution

It looks like the leaks about Battlewasps back in May were true. We won’t retread old ground as we’ve already discussed our thoughts about the potential Battlewasps support in our previous article.
That said, we’d like to preface this reveal with a minor disclaimer. Even with the official announcement over in Master Duel itself, we only have Grand Partisan the Revolution as the only confirmed Battlewasp card being released so far.
While Grand Partisan’s advertising does give credence to the previous leak, we still do not have any official confirmation that the other Battlewasp cards will be included in this pack, no matter how likely it is looking now.
Interested players would be advised to wait for the official card list before any conclusions and theory crafting commences.
Tenyi Spirit - Mula Adhara

Surprisingly, Tenyi support will be sneaking into Master Duel with this pack. Mula Adhara is basically the archetype’s version of Terraforming without actually using the spell card itself.
At the very least, it’s an easier access to the in-archetype Field Spell, Tenyinfinity.
Mula Adhara also allows a player to run Tenyi with other archetypes that want to leverage a Field Spell like Ryu-Ge War Zone.
To what end, it will depend on the win condition the deck is centered around, but this synchro monster is a very good extension piece regardless.
If you happen to play Normal monster cards, Mula Adhara becomes a pretty good ‘towers’ monster with its protection package.
Funny enough, this makes Tenyi compatible with the Primite engine. This can add to Tenyi’s list of disruption arsenal if a player wants to go that route.
Delta of Invitation

Eldlich is also getting some support in this package. Delta of Invitation allows Eldlich players to gain faster access to their main main deck monster, Eldlich the Golden Lord.
This spell card also adds another Zombie body to the field for some extra deck plays.
Flying Mary, the Wandering Ghost Ship is one such example, as you’d need a second Zombie-type monster to gain access to it.
Delta of Invitation won’t be shaking up the competitive scene. That said, consistency tools to support rogue strategies do help keep the environment of a card game healthy.
Liberator Eto

Speaking of rogue strategies, this card is basically one in and of itself.
Liberator Eto is a one-stop shop for board breaking that can bypass monster-sourced disruption. That's all because this main deck monster sports a whopping 4,000 attack power.
There are very few cards that can match this kind of firepower, and most of those don’t sport a lot of disruption effects.
A player going second can easily spend the lifepoints, summon Liberator Eto, go into the battle phase, get rid of a problem monster card, and then go into Main Phase 2 for their own play lines.
It’s not a panacea to all problems. Liberator Eto lacks any back row protection, nor does it stop monster effects from the hand. That said, it still offers a pretty rogue tech choice when it comes to going second.
Even though it can’t be used for extra deck plays, Liberator Eto can transition into a Ritual fodder once its job is done.