Because convoke isn't an alternative cost, it can be used in conjunction with alternative costs

NR YGO - 3 weeks ago 337 0 Non-Meta Decks $37.31 390 720 My Locals Charmers Post CORI Charmer, Spellbook, Possessed LeoHitanto - 3 weeks ago 862 0 Non-Meta Decks $35.86 360 630 Charmers 2 New version of a full charmers deck R0R00S - 3 weeks ago 652 0 Non-Meta Decks $58.34 360 840 200 PT Spellcaster slop Very weird at first but familiar-possessed lyna can search cart from deck MercurySlug - 3 weeks ago 505 0 Fun/Casual Decks $36.00 420 330 The Wicked Gods The wicked gods JAXAN - 4 weeks ago 463 0 Non-Meta Decks $31.50 330 870 Charmers Charmers jacksonfrostwolf - 1 month ago 631 0 Non-Meta Decks $111.40 390 300 Hypnosis deck Hypnosis deck D1o2c3t4o5r6 - 1 month ago 274 0 Non-Meta Decks $27.96 30 180 18th prog deck 18th spicylilcannoli - 1 month ago 148 0 Fun/Casual Decks $18.64 300 270 fhdushssjsj fhsjsjsj samslamdunk - 1 month ago 190 0 Non-Meta Decks $149.60 270 780 Spellcaster Slop Charmer, Fairy Tail, Magistus AnnoiTactless - 1 month ago 1,324 0 Non-Meta Decks $281.97 450 1020 Trinity Format Starter Deck - Dark Magician An easy-to-play starter deck for Trinity Format

Canyon Jerboa is from Zendikar Rising , but there's no reason a similar creature can't appear across the multiverse in the Bloomburrow set
DUSKMOURN: HOUSE OF HORROR PRODUCT LINEUP Play Boosters Draft with friends, frighten up your deck, or find some Booster Fun
The second ability is also deeply underwhelming, even in dedicated Energy lists