Through the Breach (Topper) [Ultimate Box Topper] Bolas’s Meditation Realm Contents may cause choking

Contents may cause choking

Naya Soulbeast enters the battlefield with X +1/+1 counters on it

you may put a +1/+1 counter on Thraximundar

" —Huatli

where he discovered the remarkable Mightstone

Through the Breach (Topper) [Ultimate Box Topper] Bolas’s Meditation Realm Contents may cause chokingSet: Ultimate Box Topper Type: Instant Arcane Rarity: Mythic Cost: {4}{R} You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice that creature at the beginning of the next end step. Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)