Pignite (17/114) (Cracked Ice Holo) [Black & White: Base Set] Eldrazi Octopus Disciple of Iroas gets +1/+1

Disciple of Iroas gets +1/+1 for each experience counter you have

Set: Throne of Eldraine Prerelease Promos Type: Land Rarity: Rare Castle Locthwain enters the battlefield tapped unless you control a Swamp

Set: Antiquities Type: Land — Urza's Power-Plant Rarity: Uncommon {T}: Add {C}

Set: Core Set 2020 Prerelease Promos Type: Creature — Elemental Knight Rarity: Mythic Cost: {2}{G}{G}{G} Reach

and what to do when either goes wrong

Pignite (17/114) (Cracked Ice Holo) [Black & White: Base Set] Eldrazi Octopus Disciple of Iroas gets +1/+1Set: Black & White: Base Set Type: Fire Rarity: Promo Retreat cost: Colorless,Colorless,Colorless