Yes, job select is a triggered ability
On top of that, you can cash in those counters to draw a card
That is not to say that Ghost Reaper doesnt carry the potential to decisively turn the advantage against an opponent who has a less than optimal hand that would need to rely on Double Helix to make or break a board
Radha's Extra Combat Factory Grand Warlord Radha | Illustration by Anna Steinbauer Commander (1) Creatures (47) Angrath's Marauders Armored Transport Bloodcrazed Neonate Bolt Hound Bomat Courier Brash Taunter Combat Celebrant Copperhorn Scout Dragon Mage Falkenrath Perforator Fangren Firstborn Fierce Empath Frenzied Goblin Goblin Anarchomancer Goblin Wardriver Grenzo, Havoc Raiser Grotag Night-Runner Hanweir Garrison Heir of the Wilds Hellrider Hobgoblin Captain Kari Zev, Skyship Raider Leyline Tyrant Llanowar Elves Magus of the Library Magus of the Wheel Markov Blademaster Moraug, Fury of Akoum Mrton Stromgald Ohran Frostfang Ohran Viper Port Razer Radha, Heir to Keld Robber of the Rich Sakura-Tribe Elder Scorch Spitter Scourge of the Throne Signal Pest Stonehoof Chieftain Syr Faren, the Hengehammer Thunderfoot Baloth Tilonalli's Summoner Torbran, Thane of Red Fell Toski, Bearer of Secrets Varchild, Betrayer of Kjeldor Wood Elves Wulfgar of Icewind Dale Instant (1) Sorceries (5) Faithless Looting Rampant Growth Relentless Assault Shamanic Revelation World at War Enchantments (6) Aggravated Assault Gratuitous Violence Guardian Project Rhythm of the Wild The Flame of Keld Wild Growth Artifacts (4) Arcane Signet Bag of Holding Dolmen Gate Sol Ring Lands (35) Command Tower Evolving Wilds Forest x15 Gruul Guildgate Kazandu Refuge Mountain x14 Myriad Landscape Rugged Highlands Grand Warlord Radhas Dominaria form works great as a mana-generating aggressive deck, which suits extra combat steps well
Here you see that people have fallen to the temptation of the power offered by your Mythos creature, or Emrakul playing into that role on the plane of Innistrad
UR Ultra Rare Limited Limited Chaos Space X SPELL Send 1 LIGHT or DARK monster from your hand to the GY
