Training Grounds

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

The Blue Spirit

You may cast the first creature spell you cast each turn as though it had flash.
Whenever a nontoken creature you control enters during combat, draw a card.

Duelist's Heritage

Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.

Noctis, Heir Apparent

Whenever a creature you control enters during combat, you may attach target Equipment you control to target creature you control.
Warp-Strike — {3}: Exile Noctis. Return it to the battlefield under its owner's control tapped and attacking at the beginning of that player's next declare attackers step. It can't be blocked that combat.

Candlekeep Sage

Commander creatures you own have "When this creature enters or leaves the battlefield, draw a card."