Talos. Heir to the Throne

Flying, trample, deathtouch
When Talos enters the battlefield, you may tap X
mana. If you do, choose one:
• Gain control of target creature with X mana
cost or less. It gains haste until end of turn.
• Search your library for X creatures with
toughness 4 or less.
• Destroy X creatures, artifacts, enchantments,
and tokens.
{6}{u}{g}{b}: Adapt 6.