Generally, prices for these items are inflated to the point that they're not worth considering (even with the added convenience of Prime shipping)
The Pokmon TCG Pocket development team has shared to the community what's to come in the next updates to the game

Ezuri +1/+1 Counters Ezuri, Claw of Progress | Illustration by Livia Prima Commander (1) Planeswalkers (2) Nissa, Voice of Zendikar Jiang Yanggu, Wildcrafter Creatures (30) Elvish Mystic Fyndhorn Elves Llanowar Elves Blighted Agent Cankerbloom Coiling Oracle Devoted Druid Gyre Sage Incubation Druid Invisible Stalker Quirion Beastcaller Sage of Hours Thrummingbird Champion of Lambholt Cold-Eyed Selkie Edric, Spymaster of Trest Evolution Sage Kami of Whispered Hopes Managorger Hydra Marwyn, the Nurturer Rishkar, Peema Renegade Tuskguard Captain Vorel of the Hull Clade Fathom Mage Forgotten Ancient Lulu, Stern Guardian Siren Stormtamer Master Biomancer Cultivator of Blades Mycoloth Instants (12) Bioshift Silkguard Slip Out the Back Tamiyo's Safekeeping Counterspell Experimental Augury Growth Spiral Negate Reality Shift Serum Snare Inspiring Call Steady Progress Sorceries (7) Thirsting Roots Contentious Plan Nature's Lore Rampant Growth Unnatural Restoration Cultivate Tezzeret's Gambit Enchantments (9) Hardened Scales Kenrith's Transformation Awakening Zone Bred for the Hunt Garruk's Uprising Jugan Defends the Temple Levitation Primal Empathy Wizard Class Artifacts (2) Contagion Clasp Swiftfoot Boots Lands (37) Ash Barrens Brokers Hideout Evolving Wilds Forest x14 Hinterland Harbor Island x9 Karn's Bastion Lumbering Falls Mosswort Bridge Oran-Rief, the Vastwood Simic Growth Chamber Tangled Islet Tanglepool Bridge Temple of Mystery Thornwood Falls Yavimaya Coast Ezuri, Claw of Progress is a deck that takes a little time to get going, but quickly snowballs out of control

Firion, Wild Rose Warrior Firion, Wild Rose Warrior is a house with equipment, as you can have situations when you cast an equipment that costs 2 or less to equip, make a token copy of it, immediately equip another creature, and attack
Send 1 monster from your hand or field to the GY whose Type is the same as a Fusion Monster that can be Special Summoned by the effect of "Hermos' Claw" (if the card is Set, flip it face-up to confirm)
Put the fusion under Cross-Sheep