Ixalan

Demystify | Instant | | Destroy target enchantment. | Igor Kieryluk

Slash of Talons | Instant | | Slash of Talons deals 2 damage to target attacking or blocking creature. | Magali Villeneuve

Vampire's Zeal | Instant | | Target creature gets +2/+2 until end of turn. If it's a Vampire, it gains first strike until end of turn. | Gabor Szikszai

Dive Down | Instant | | Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.) | Magali Villeneuve

Opt | Instant | | Scry 1. Draw a card. | Craig J Spearing

Spell Pierce | Instant | | Counter target noncreature spell unless its controller pays {2}. | Deruchenko Alexander

Skulduggery | Instant | | Until end of turn, target creature you control gets +1/+1 and target creature an opponent controls gets -1/-1. | Deruchenko Alexander

Dual Shot | Instant | | Dual Shot deals 1 damage to each of up to two target creatures. | Sara Winters