Eidolon of the Great Revel | Enchantment Creature | Spirit | Whenever a player casts a spell with mana value 3 or less, Eidolon of the Great Revel deals 2 damage to that player. | Cyril Van Der Haegen
Font of Ire | Enchantment | | {3}{R}, Sacrifice Font of Ire: It deals 5 damage to target player or planeswalker. | Zack Stella
Mogis's Warhound | Enchantment Creature | Dog | Bestow {2}{R} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Mogis's Warhound attacks each combat if able.
Enchanted creature gets +2/+2 and attacks each combat if able. | John Severin Brassell
Sigiled Skink | Creature | Lizard | Whenever Sigiled Skink attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) | Yeong-Hao Han
Twinflame | Sorcery | | Strive — This spell costs {2}{R} more to cast for each target beyond the first.
Choose any number of target creatures you control. For each of them, create a token that's a copy of that creature, except it has haste. Exile those tokens at the beginning of the next end step. | Chase Stone
Desperate Stand | Sorcery | | Strive — This spell costs {R}{W} more to cast for each target beyond the first.
Any number of target creatures each get +2/+0 and gain first strike and vigilance until end of turn. | Raymond Swanland